part v—hazardous materials hazardous … · 5001.3.3.1 properties of hazardous materials. the ......

2013 CALIFORNIA FIRE CODE 365

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLECHAPTER 50 – HAZARDOUS MATERIALS—GENERAL PROVISIONS

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building applications.)

Part V—Hazardous Materials

CHAPTER 50

HAZARDOUS MATERIALS—GENERAL PROVISIONS

SECTION 5001GENERAL

5001.1 Scope. Prevention, control and mitigation of danger-ous conditions related to storage, dispensing, use and han-dling of hazardous materials shall be in accordance with thischapter.

This chapter shall apply to all hazardous materials, includ-ing those materials regulated elsewhere in this code, exceptthat when specific requirements are provided in other chap-ters, those specific requirements shall apply in accordancewith the applicable chapter. Where a material has multiplehazards, all hazards shall be addressed.

Exceptions:

1. In retail or wholesale sales occupancies, the quan-tities of medicines, foodstuffs, consumer or indus-

trial products and cosmetics containing not morethan 50 percent by volume of water-miscible liq-uids and with the remainder of the solutions notbeing flammable shall not be limited, providedsuch materials are packaged in individual contain-ers not exceeding 1.3 gallons (5 L).

2. Quantities of alcoholic beverages in retail orwholesale sales occupancies shall not be limitedproviding the liquids are packaged in individualcontainers not exceeding 1.3 gallons (5 L).

3. Application and release of pesticide and agricul-tural products and materials intended for use inweed abatement, erosion control, soil amendmentor similar applications when applied in accordance

* The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR,Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same.

Adopting Agency BSCSFM HCD DSA OSHPD

BSCC DHS AGR DWR CEC CA SL SLCT-24 T-19* 1 2 1/AC AC SS 1 2 3 4

Adopt Entire Chapter

Adopt Entire Chapter as amended (amended sections listed below) X

Adopt only those sections that are listed below

[California Code of Regulations, Title 19, Division 1]

Chapter / Section

5001.2.2.1 X

5001.5.1 X

5001.5.2 X

Table 5003.1.1(1) X

Table 5003.1.1(2) X

5003.10 X

5003.10.2 X

5003.10.2.1 X

5003.10.2.2 X

5003.10.4 X

5003.10.4.1 X

5003.10.4.2 X

5003.10.4.3 X

5003.10.4.4 X

5004.3.1 X

X

50_CA_Fire_2013.fm Page 365 Monday, May 20, 2013 10:31 AM

Copyright to, or licensed by, ICC (ALL RIGHTS RESERVED); accessed by INDIVIDUAL USE ONLY pursuant to License Agreement. No further reproductions authorized.


366 2013 CALIFORNIA FIRE CODE

with the manufacturers’ instructions and labeldirections.

4. The off-site transportation of hazardous materialswhen in accordance with Department of Transpor-tation (DOTn) regulations.

5. Building materials not otherwise regulated by thiscode.

6. Refrigeration systems (see Section 606).

7. Stationary storage battery systems regulated bySection 608.

8. The display, storage, sale or use of fireworks andexplosives in accordance with Chapter 56.

9. Corrosives utilized in personal and householdproducts in the manufacturers’ original consumerpackaging in Group M occupancies.

10. The storage of distilled spirits and wines inwooden barrels and casks.

11. The use of wall-mounted dispensers containingalcohol-based hand rubs classified as Class I or IIliquids when in accordance with Section 5705.5.

5001.1.1 Waiver. The provisions of this chapter arewaived when the fire code official determines that suchenforcement is preempted by other codes, statutes or ordi-nances. The details of any action granting such a waivershall be recorded and entered in the files of the codeenforcement agency.

5001.2 Material classification. Hazardous materials arethose chemicals or substances defined as such in this code.Definitions of hazardous materials shall apply to all hazard-ous materials, including those materials regulated elsewherein this code.

5001.2.1 Mixtures. Mixtures shall be classified in accor-dance with hazards of the mixture as a whole. Mixtures ofhazardous materials shall be classified in accordance withnationally recognized reference standards; by an approvedqualified organization, individual, or Material Safety DataSheet (MSDS); or by other approved methods.

5001.2.2 Hazard categories. Hazardous materials shall beclassified according to hazard categories. The categoriesinclude materials regulated by this chapter and materialsregulated elsewhere in this code.

5001.2.2.1 Physical hazards. The material categorieslisted in this section are classified as physical hazards.A material with a primary classification as a physicalhazard can also pose a health hazard.

1. Explosives and blasting agents.

2. Combustible liquids.

3. Flammable solids, liquids and gases.

4. Organic peroxide solids or liquids.

5. Oxidizer, solids or liquids.

6. Oxidizing gases.

7. Pyrophoric solids, liquids or gases.

8. Unstable (reactive) solids, liquids or gases.

9. Water-reactive solids or liquids.

10. Cryogenic fluids.

5001.2.2.2 Health hazards. The material categorieslisted in this section are classified as health hazards. Amaterial with a primary classification as a health hazardcan also pose a physical hazard.

1. Highly toxic and toxic materials.

2. Corrosive materials.

5001.3 Performance-based design alternative. Whenapproved by the fire code official, buildings and facilitieswhere hazardous materials are stored, used or handled shallbe permitted to comply with this section as an alternative tocompliance with the other requirements set forth in this chap-ter and Chapters 51 through 67.

5001.3.1 Objective. The objective of Section 5001.3 is toprotect people and property from the consequences ofunauthorized discharge, fires or explosions involving haz-ardous materials.

5001.3.2 Functional statements. Performance-baseddesign alternatives are based on the following functionalstatements:

1. Provide safeguards to minimize the risk of unwantedreleases, fires or explosions involving hazardousmaterials.

2. Provide safeguards to minimize the consequences ofan unsafe condition involving hazardous materialsduring normal operations and in the event of anabnormal condition.

5001.3.3 Performance requirements. When safeguards,systems, documentation, written plans or procedures,audits, process hazards analysis, mitigation measures,engineering controls or construction features are requiredby Sections 5001.3.3.1 through 5001.3.3.18, the details ofthe design alternative shall be subject to approval by thefire code official. The details of actions granting the use ofthe design alternatives shall be recorded and entered in thefiles of the jurisdiction.

5001.3.3.1 Properties of hazardous materials. Thephysical- and health-hazard properties of hazardousmaterials on site shall be known and shall be madereadily available to employees, neighbors and the firecode official.

5001.3.3.2 Reliability of equipment and operations.Equipment and operations involving hazardous materi-als shall be designed, installed and maintained toensure that they reliably operate as intended.

5001.3.3.3 Prevention of unintentional reaction orrelease. Safeguards shall be provided to minimize therisk of an unintentional reaction or release that couldendanger people or property.

>





5001.3.3.4 Spill mitigation. Spill containment systemsor means to render a spill harmless to people or prop-erty shall be provided where a spill is determined to bea plausible event and where such an event wouldendanger people or property.

5001.3.3.5 Ignition hazards. Safeguards shall be pro-vided to minimize the risk of exposing combustiblehazardous materials to unintended sources of ignition.

5001.3.3.6 Protection of hazardous materials. Safe-guards shall be provided to minimize the risk of expos-ing hazardous materials to a fire or physical damagewhereby such exposure could endanger or lead to theendangerment of people or property.

5001.3.3.7 Exposure hazards. Safeguards shall beprovided to minimize the risk of and limit damage froma fire or explosion involving explosive hazardous mate-rials whereby such fire or explosion could endanger orlead to the endangerment of people or property.

5001.3.3.8 Detection of gas or vapor release. Where arelease of hazardous materials gas or vapor wouldcause immediate harm to persons or property, means ofmitigating the dangerous effects of a release shall beprovided.

5001.3.3.9 Reliable power source. Where a powersupply is relied upon to prevent or control an emer-gency condition that could endanger people or prop-erty, the power supply shall be from a reliable source.

5001.3.3.10 Ventilation. Where ventilation is neces-sary to limit the risk of creating an emergency condi-tion resulting from normal or abnormal operations,means of ventilation shall be provided.

5001.3.3.11 Process hazard analyses. Process hazardanalyses shall be conducted to ensure reasonably theprotection of people and property from dangerous con-ditions involving hazardous materials.

5001.3.3.12 Pre-startup safety review. Written docu-mentation of pre-startup safety review procedures shallbe developed and enforced to ensure that operations areinitiated in a safe manner. The process of developingand updating such procedures shall involve the partici-pation of affected employees.

5001.3.3.13 Operating and emergency procedures.Written documentation of operating procedures andprocedures for emergency shut down shall be devel-oped and enforced to ensure that operations are con-ducted in a safe manner. The process of developing andupdating such procedures shall involve the participa-tion of affected employees.

5001.3.3.14 Management of change. A written planfor management of change shall be developed andenforced. The process of developing and updating theplan shall involve the participation of affected employ-ees.

5001.3.3.15 Emergency plan. A written emergencyplan shall be developed to ensure that proper actionsare taken in the event of an emergency, and the plan

shall be followed if an emergency condition occurs.The process of developing and updating the plan shallinvolve the participation of affected employees.

5001.3.3.16 Accident procedures. Written proceduresfor investigation and documentation of accidents shallbe developed, and accidents shall be investigated anddocumented in accordance with these procedures.

5001.3.3.17 Consequence analysis. Where an acciden-tal release of hazardous materials could endanger peo-ple or property, either on or off-site, an analysis of theexpected consequences of a plausible release shall beperformed and utilized in the analysis and selection ofactive and passive hazard mitigation controls.

5001.3.3.18 Safety audits. Safety audits shall be con-ducted on a periodic basis to verify compliance with therequirements of this section.

5001.4 Retail and wholesale storage and display. For retailand wholesale storage and display of nonflammable solid andnonflammable or noncombustible liquid hazardous materialsin Group M occupancies and storage in Group S occupancies,see Section 5003.11.

5001.5 Permits. Permits shall be required as set forth in Sec-tions 105.6 and 105.7.

When required by the fire code official, permittees shallapply for approval to permanently close a storage, use or han-dling facility. Such application shall be submitted at least 30days prior to the termination of the storage, use or handling ofhazardous materials. The fire code official is authorized torequire that the application be accompanied by an approvedfacility closure plan in accordance with Section 5001.6.3.

5001.5.1 Hazardous Materials Management Plan(HMMP). Where required by the fire code official, anapplication for a permit shall include an HMMP. TheHMMP shall include a facility site plan designating thefollowing:

1. Access to each storage and use area.

2. Location of emergency equipment.

3. Location where liaison will meet emergencyresponders.

4. Facility evacuation meeting point locations.

5. The general purpose of other areas within the build-ing.

6. Location of all above-ground and underground tanksand their appurtenances including, but not limitedto, sumps, vaults, below-grade treatment systemsand piping.

7. The hazard classes in each area.

8. Locations of all control areas and Group H occupan-cies.

9. Emergency exits.

[For SFM] The HMMP shall comply with Health andSafety Code, Chapter 6.95, Sections 25500 through 25545,and Title 19, Division 2, Chapter 4.

50_CA_Fire_2013.fm 67 Monday, May 20, 2013 10:31 AM




5001.5.2 Hazardous Materials Inventory Statement(HMIS). Where required by the fire code official, anapplication for a permit shall include an HMIS, such asSuperfund Amendments and Reauthorization Act of 1986(SARA) Title III, Tier II Report or other approved state-ment. The HMIS shall include the following information:

1. Product name.

2. Component.

3. Chemical Abstract Service (CAS) number.

4. Location where stored or used.

5. Container size.

6. Hazard classification.

7. Amount in storage.

8. Amount in use-closed systems.

9. Amount in use-open systems.

[For SFM] The HMIS shall comply with Health and SafetyCode, Chapter 6.95, Sections 25500 through 25545, andTitle 19, Division 2, Chapter 4.

5001.6 Facility closure. Facilities shall be placed out of ser-vice in accordance with Sections 5001.6.1 through 5001.6.3.

5001.6.1 Temporarily out-of-service facilities. Facilitiesthat are temporarily out of service shall continue to main-tain a permit and be monitored and inspected.

5001.6.2 Permanently out-of-service facilities. Facili-ties for which a permit is not kept current or is not moni-tored and inspected on a regular basis shall be deemed tobe permanently out of service and shall be closed in anapproved manner. When required by the fire code official,permittees shall apply for approval to close permanentlystorage, use or handling facilities. The fire code official isauthorized to require that such application be accompaniedby an approved facility closure plan in accordance withSection 5001.6.3.

5001.6.3 Facility closure plan. When a facility closureplan is required in accordance with Section 5001.5 to termi-nate storage, dispensing, handling or use of hazardousmaterials, it shall be submitted to the fire code official atleast 30 days prior to facility closure. The plan shall demon-strate that hazardous materials which are stored, dispensed,handled or used in the facility will be transported, disposedof or reused in a manner that eliminates the need for furthermaintenance and any threat to public health and safety.

SECTION 5002DEFINITIONS

5002.1 Definitions. The following terms are defined in Chap-ter 2:

BOILING POINT.

CEILING LIMIT.

CHEMICAL.

CHEMICAL NAME.

CLOSED CONTAINER.

CONTAINER.

CONTROL AREA.

CYLINDER.

DAY BOX.

DEFLAGRATION.

DESIGN PRESSURE.

DETACHED BUILDING.

DISPENSING.

EXCESS FLOW CONTROL.

EXHAUSTED ENCLOSURE.

EXPLOSION.

FLAMMABLE VAPORS OR FUMES.

GAS CABINET.

GAS ROOM.

HANDLING.

HAZARDOUS MATERIALS.

HEALTH HAZARD.

IMMEDIATELY DANGEROUS TO LIFE ANDHEALTH (IDLH).

INCOMPATIBLE MATERIALS.

LIQUID.

LOWER EXPLOSIVE LIMIT (LEL).

LOWER FLAMMABLE LIMIT (LFL).

MATERIAL SAFETY DATA SHEET (MSDS).

MAXIMUM ALLOWABLE QUANTITY PER CON-TROL AREA.

NORMAL TEMPERATURE AND PRESSURE (NTP).

OUTDOOR CONTROL AREA.

PERMISSIBLE EXPOSURE LIMIT (PEL).

PESTICIDE.

PHYSICAL HAZARD.

PRESSURE VESSEL.

SAFETY CAN.

SECONDARY CONTAINMENT.

SEGREGATED.

SOLID.

STORAGE, HAZARDOUS MATERIALS.

SYSTEM.

TANK, ATMOSPHERIC.

TANK, PORTABLE.

TANK, STATIONARY.

TANK VEHICLE.

UNAUTHORIZED DISCHARGE.

USE (MATERIAL).

VAPOR PRESSURE.





SECTION 5003GENERAL REQUIREMENTS

5003.1 Scope. The storage, use and handling of all hazardousmaterials shall be in accordance with this section.

5003.1.1 Maximum allowable quantity per controlarea. The maximum allowable quantity per control areashall be as specified in Tables 5003.1.1(1) through5003.1.1(4).

For retail and wholesale storage and display in GroupM occupancies and Group S storage, see Section 5003.11.

5003.1.2 Conversion. Where quantities are indicated inpounds and when the weight per gallon of the liquid is notprovided to the fire code official, a conversion factor of 10pounds per gallon (1.2 kg/L) shall be used.

5003.1.3 Quantities not exceeding the maximum allow-able quantity per control area. The storage, use and han-dling of hazardous materials in quantities not exceedingthe maximum allowable quantity per control area indi-cated in Tables 5003.1.1(1) through 5003.1.1(4) shall be inaccordance with Sections 5001 and 5003.

5003.1.4 Quantities exceeding the maximum allowablequantity per control area. The storage and use of hazard-ous materials in quantities exceeding the maximum allow-able quantity per control area indicated in Tables5003.1.1(1) through 5003.1.1(4) shall be in accordancewith this chapter.

5003.2 Systems, equipment and processes. Systems, equip-ment and processes utilized for storage, dispensing, use orhandling of hazardous materials shall be in accordance withSections 5003.2.1 through 5003.2.8.

5003.2.1 Design and construction of containers, cylin-ders and tanks. Containers, cylinders and tanks shall bedesigned and constructed in accordance with approvedstandards. Containers, cylinders, tanks and other meansused for containment of hazardous materials shall be of anapproved type. Pressure vessels shall comply with theASME Boiler and Pressure Vessel Code.

5003.2.2 Piping, tubing, valves and fittings. Piping, tub-ing, valves, and fittings conveying hazardous materialsshall be designed and installed in accordance with ASMEB31 or other approved standards, and shall be in accor-dance with Sections 5003.2.2.1 and 5003.2.2.2.

5003.2.2.1 Design and construction. Piping, tubing,valves, fittings and related components used for hazard-ous materials shall be in accordance with the following:

1. Piping, tubing, valves, fittings and related com-ponents shall be designed and fabricated frommaterials that are compatible with the material tobe contained and shall be of adequate strengthand durability to withstand the pressure, struc-tural and seismic stress and exposure to whichthey are subject.

2. Piping and tubing shall be identified in accor-dance with ASME A13.1 to indicate the materialconveyed.

3. Readily accessible manual valves or automaticremotely activated fail-safe emergency shutoffvalves shall be installed on supply piping andtubing at the following locations:

3.1. The point of use.

3.2. The tank, cylinder or bulk source.

4. Manual emergency shutoff valves and controlsfor remotely activated emergency shutoff valvesshall be identified and the location shall beclearly visible, accessible and indicated by meansof a sign.

5. Backflow prevention or check valves shall beprovided when the backflow of hazardous materi-als could create a hazardous condition or causethe unauthorized discharge of hazardous materi-als.

6. Where gases or liquids having a hazard rankingof:

Health Class 3 or 4Flammability Class 4Instability Class 3 or 4

in accordance with NFPA 704 are carried in pres-surized piping above 15 pounds per square inchgauge (psig) (103 kPa), an approved means ofleak detection and emergency shutoff or excessflow control shall be provided. Where the pipingoriginates from within a hazardous material stor-age room or area, the excess flow control shall belocated within the storage room or area. Wherethe piping originates from a bulk source, theexcess flow control shall be located as close tothe bulk source as practical.

Exceptions:

1. Piping for inlet connections designed to pre-vent backflow.

2. Piping for pressure relief devices.





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sale

sal

es o

ccup

anci

es,

the

quan

titie

s of

med

icin

es,

food

stuf

fs,

cons

umer

or

indu

stri

al p

rodu

cts,

and

cos

met

ics

cont

aini

ng n

ot m

ore

than

50

perc

ent

by v

olum

e of

wat

er-m

isci

ble

liqui

ds w

ith

the

rem

aind

er o

f th

e so

lutio

ns n

ot b

eing

fla

mm

able

sha

ll no

t be

limite

d, p

rovi

ded

that

suc

h m

ater

ials

are

pac

kage

d in

indi

vidu

al c

onta

iner

s no

t exc

eedi

ng 1

.3 g

allo

ns.

d.M

axim

um a

llow

able

qua

ntiti

es s

hall

be

incr

ease

d 10

0 pe

rcen

t in

build

ings

equ

ippe

d th

roug

hout

with

an

appr

oved

aut

omat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith S

ectio

n 90

3.3.

1.1.

Whe

re N

ote

e al

so a

pplie

s,th

e in

crea

se f

or b

oth

note

s sh

all b

e ap

plie

d ac

cum

ulat

ivel

y.

(con

tinu

ed)

MA

TE

RIA

LC

LA

SS

GR

OU

P W

HE

N

TH

E M

AX

IMU

M

AL

LO

WA

BL

E

QU

AN

TIT

Y IS

E

XC

EE

DE

D

ST

OR

AG

Eb

US

E-C

LO

SE

D S

YS

TE

MS

bU

SE

-OP

EN

SY

ST

EM

Sb

So

lidp

ou

nd

s(c

ub

ic f

eet)

Liq

uid

gal

lon

s(p

ou

nd

s)

Gas

cub

ic f

eet

at N

TP

So

lidp

ou

nd

s(c

ub

ic f

eet)

Liq

uid

gal

lon

s(p

ou

nd

s)

Gas

cub

ic f

eet

at N

TP

So

lidp

ou

nd

s(c

ub

ic f

eet)

Liq

uid

gal

lon

s(p

ou

nd

s)

Iner

t Gas

Cry

ogen

ic I

nert

Gas

eous

Liq

uefi

ed

Not

App

licab

le

Not

App

licab

leN

otA

pplic

able

Not

App

licab

le

Not

A

pplic

able

Not

A

pplic

able

Not

A

pplic

able

Not

A

ppli

cabl

eN

ot

App

lica

ble

Not

A

ppli

cabl

e

Not

Lim

ited

Not

Lim

ited

Not

Lim

ited

Not

A

pplic

able

Not

A

pplic

able

Not

A

pplic

able

Not

App

licab

leN

otA

pplic

able

Not

App

licab

le

Not

Lim

ited

Not

Lim

ited

Not

Lim

ited

Not

App

licab

leN

otA

pplic

able

Not

A

pplic

able

Not

App

licab

leN

otA

pplic

able

Not

App

licab

le

Org

anic

per

oxid

e

UD I II III

IV V

H-1

H-2

H-3

H-3

Not

App

licab

leN

ot A

pplic

able

1e, g

5d, e

50d,

e

125d,

e

Not

Lim

ited

Not

Lim

ited

(1)e,

g

(5)d,

e

(50)

d, e

(125

)d, e

Not

Lim

ited

Not

Lim

ited

Not

App

licab

le

0.25

g

1d

50d

125d

Not

Lim

ited

Not

Lim

ited

(0.2

5)g

(1)d

(50)

d

(125

)d

Not

Lim

ited

Not

Lim

ited

Not

App

lica

ble

0.25

g

1d

10d

25d

Not

Lim

ited

Not

Lim

ited

(0.2

5)g

(1)d

(10)

d

(25)

d

Not

Lim

ited

Not

Lim

ited

Oxi

dize

r

4 3k 2 1

H-1

H-2

or

H-3

H-3

Not

App

licab

le

1g

10d,

e

250d,

e

4,00

0e,f

(1)e,

g

(10)

d, e

(250

)d, e

(4,0

00)e,

f

Not

App

licab

le

0.25

g

2d

250d

4,00

0f

(0.2

5)g

(2)d

(250

)d

(4,0

00)f

Not

App

lica

ble

0.25

g

2d

50d

1,00

0f

(0.2

5)g

(2)d

(50)

d

(1,0

00)f

Oxi

dizi

ng g

as

Gas

eous

Liq

uefi

edH

-3N

ot A

pplic

able

Not

App

lica

ble

(150

)d, e

1,50

0d, e

Not

App

licab

leN

ot A

pplic

able

Not

App

licab

le(1

50)d,

e1,

500d,

e

Not

App

lica

ble

Not

App

licab

leN

otA

pplic

able

Pyro

phor

ic

Not

App

licab

leH

-24e,

g(4

)e, g

50e,

g1g

(1)g

10e,

g0

0

Uns

tabl

e (r

eact

ive)

4 3 2 1

H-1

H-1

or

H-2

H-3

Not

App

licab

le

1e, g

5d, e

50d,

e

Not

Lim

ited

(1)e,

g

(5)d,

e

(50)

d, e

Not

Lim

ited

10e,

g

50d,

e

250d,

e

Not

Lim

ited

0.25

g

1d

50d

Not

Lim

ited

(0.2

5)g

(1)d

(50)

d

Not

Lim

ited

2e, g

10d,

e

250d,

e

Not

Lim

ited

0.25

g

1d

10d

Not

Lim

ited

(0.2

5)g

(1)d

(10)

d

Not

Lim

ited

Wat

er r

eact

ive

3 2 1

H-2

H-3

Not

App

licab

le

5d,e

50d,

e

Not

Lim

ited

(5)d,

e

(50)

d, e

Not

Lim

ited

Not

App

licab

le

5d

50d

Not

Lim

ited

(5)d

(50)

d

Not

Lim

ited

Not

App

lica

ble

1d

10d

Not

Lim

ited

(1)d

(10)

d

Not

Lim

ited





TA

BL

E 5

003.

1.1(

1)—

con

tin

ued

MA

XIM

UM

AL

LO

WA

BL

E Q

UA

NT

ITY

PE

R C

ON

TR

OL

AR

EA

OF

HA

ZA

RD

OU

S M

AT

ER

IAL

S P

OS

ING

A P

HY

SIC

AL

HA

ZA

RD

a, j,

m, n

, p

e.M

axim

um a

llow

able

qua

ntiti

es s

hall

be i

ncre

ased

100

per

cent

whe

n st

ored

in

appr

oved

sto

rage

cab

inet

s, d

ay b

oxes

, gas

cab

inet

s, e

xhau

sted

enc

losu

res,

or

liste

d sa

fety

can

s. L

iste

d sa

fety

can

s sh

all

be i

nac

cord

ance

with

Sec

tion

500

3.9.

10. W

here

Not

e d

also

app

lies,

the

incr

ease

for

bot

h no

tes

shal

l be

appl

ied

accu

mul

ativ

ely.

f.Q

uant

ities

sha

ll n

ot b

e lim

ited

in a

bui

ldin

g eq

uipp

ed th

roug

hout

with

an

appr

oved

aut

omat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith S

ectio

n 90

3.3.

1.1.

g.A

llow

ed o

nly

in b

uild

ings

equ

ippe

d th

roug

hout

wit

h an

app

rove

d au

tom

atic

spr

inkl

er s

yste

m.

h.C

onta

inin

g no

t mor

e th

an th

e m

axim

um a

llow

able

qua

ntity

per

con

trol

are

a of

Cla

ss I

A, C

lass

IB

or

Cla

ss I

C f

lam

mab

le li

quid

s.i.

The

max

imum

allo

wab

le q

uant

ity s

hall

not a

pply

to f

uel o

il s

tora

ge c

ompl

ying

with

Sec

tion

603

.3.2

.j.

Qua

ntiti

es in

par

enth

esis

indi

cate

qua

ntity

uni

ts in

par

enth

esis

at t

he h

ead

of e

ach

colu

mn.

k.A

max

imum

qua

ntit

y of

200

pou

nds

of s

olid

or

20 g

allo

ns o

f li

quid

Cla

ss 3

oxi

dize

rs is

all

owed

whe

n su

ch m

ater

ials

are

nec

essa

ry f

or m

aint

enan

ce p

urpo

ses,

ope

rati

on o

r sa

nita

tion

of

equi

pmen

t whe

n th

est

orag

e co

ntai

ners

and

the

man

ner

of s

tora

ge a

re a

ppro

ved.

l.N

et w

eigh

t of

pyr

otec

hnic

com

posi

tion

of t

he f

irew

orks

. W

here

the

net

wei

ght

of t

he p

yrot

echn

ic c

ompo

sitio

n of

the

fir

ewor

ks i

s no

t kn

own,

25

perc

ent

of t

he g

ross

wei

ght

of t

he f

irew

orks

inc

ludi

ngpa

ckag

ing

shal

l be

used

.m

.For

gal

lons

of

liqu

ids,

div

ide

the

amou

nt in

pou

nds

by 1

0 in

acc

orda

nce

wit

h S

ecti

on 5

003.

1.2.

n.Fo

r st

orag

e an

d di

spla

y qu

antit

ies

in G

roup

M a

nd s

tora

ge q

uant

ities

in G

roup

S o

ccup

anci

es c

ompl

ying

with

Sec

tion

500

3.11

, see

Tab

le 5

003.

11.1

.o.

Den

sely

-pac

ked

bale

d co

tton

that

com

plie

s w

ith

the

pack

ing

requ

irem

ents

of

ISO

811

5 sh

all n

ot b

e in

clud

ed in

this

mat

eria

l cla

ss.

p.T

he f

ollo

win

g sh

all n

ot b

e in

clud

ed in

det

erm

inin

g th

e m

axim

um a

llow

able

qua

ntiti

es:

1.L

iqui

d or

gas

eous

fue

l in

fuel

tank

s on

veh

icle

s.2.

Liq

uid

or g

aseo

us f

uel i

n fu

el ta

nks

on m

otor

ized

equ

ipm

ent o

pera

ted

in a

ccor

danc

e w

ith th

is c

ode.

3.G

aseo

us f

uels

in p

ipin

g sy

stem

s an

d fi

xed

appl

ianc

es r

egul

ated

by

the

Cal

ifor

nia

Mec

hani

cal C

ode.

4.L

iqui

d fu

els

in p

ipin

g sy

stem

s an

d fi

xed

appl

ianc

es, r

egul

ated

by

the

Cal

ifor

nia

Mec

hani

cal C

ode.

q.

Whe

re m

anuf

actu

red,

gen

erat

ed o

r us

ed in

suc

h a

man

ner

that

the

conc

entr

atio

n an

d co

ndit

ions

cre

ate

a fi

re o

r ex

plos

ion

haza

rd b

ased

on

info

rmat

ion

prep

ared

in a

ccor

danc

e w

ith S

ectio

n 10

4.7.

2.





TA

BL

E 5

003.

1.1(

2)M

AX

IMU

M A

LL

OW

AB

LE

QU

AN

TIT

Y P

ER

CO

NT

RO

L A

RE

A O

F H

AZ

AR

DO

US

MA

TE

RIA

L P

OS

ING

A H

EA

LT

H H

AZ

AR

Da,

b, c

, h, i

For

SI:

1 cu

bic

foot

= 0

.028

32 m

3 , 1 p

ound

= 0

.454

kg,

1 g

allo

n =

3.7

85 L

.a.

For

use

of

cont

rol a

reas

, see

Sec

tion

500

3.8.

3.b.

In r

etai

l and

who

lesa

le s

ales

occ

upan

cies

, the

qua

ntiti

es o

f m

edic

ines

, foo

dstu

ffs,

con

sum

er o

r in

dust

rial

pro

duct

s, a

nd c

osm

etic

s, c

onta

inin

g no

t mor

e th

an 5

0 pe

rcen

t by

volu

me

of w

ater

-mis

cibl

e liq

uids

and

with

the

rem

aind

er o

f th

e so

lutio

ns n

ot b

eing

fla

mm

able

, sha

ll no

t be

limite

d, p

rovi

ded

that

suc

h m

ater

ials

are

pac

kage

d in

indi

vidu

al c

onta

iner

s no

t exc

eedi

ng 1

.3 g

allo

ns.

c.Fo

r st

orag

e an

d di

spla

y qu

anti

ties

in G

roup

M a

nd s

tora

ge q

uant

ities

in G

roup

S o

ccup

anci

es c

ompl

ying

with

Sec

tion

5003

.11,

see

Tab

le 5

003.

11.1

.d.

The

agg

rega

te q

uant

ity in

use

and

sto

rage

sha

ll no

t exc

eed

the

quan

tity

liste

d fo

r st

orag

e.e.

Max

imum

allo

wab

le q

uant

ities

sha

ll be

incr

ease

d 10

0 pe

rcen

t in

build

ings

equ

ippe

d th

roug

hout

with

an

appr

oved

aut

omat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith S

ectio

n 90

3.3.

1.1.

Whe

re N

ote

f al

so a

pplie

s,th

e in

crea

se f

or b

oth

note

s sh

all b

e ap

plie

d ac

cum

ulat

ivel

y. T

his

foot

note

sha

ll n

ot b

e ap

plic

able

to G

roup

L o

ccup

anci

es.

f.M

axim

um a

llow

able

qua

ntiti

es s

hall

be

incr

ease

d 10

0 pe

rcen

t whe

n st

ored

in a

ppro

ved

stor

age

cabi

nets

, gas

cab

inet

s or

exh

aust

ed e

nclo

sure

s. W

here

Not

e e

also

app

lies,

the

incr

ease

for

bot

h no

tes

shal

l be

appl

ied

accu

mul

ativ

ely.

g.A

llow

ed o

nly

whe

n st

ored

in a

ppro

ved

exha

uste

d ga

s ca

bine

ts o

r ex

haus

ted

encl

osur

es.

h.Q

uant

ities

in p

aren

thes

es in

dica

te q

uant

ity u

nits

in p

aren

thes

es a

t the

hea

d of

eac

h co

lum

n.i.

For

gal

lons

of

liqu

ids,

div

ide

the

amou

nt in

pou

nds

by 1

0 in

acc

orda

nce

wit

h S

ecti

on 5

003.

1.2.

MA

TE

RIA

L

ST

OR

AG

Ed

US

E-C

LO

SE

D S

YS

TE

MS

dU

SE

-OP

EN

SY

ST

EM

Sd

So

lid p

ou

nd

se, f

Liq

uid

gal

lon

s(p

ou

nd

s)e,

fG

as c

ub

ic f

eet

at N

TP

(po

un

ds)

eS

olid

po

un

dse

Liq

uid

gal

lon

s(p

ou

nd

s)e

Gas

cu

bic

fee

t at

NT

P(p

ou

nd

s)e

So

lid p

ou

nd

seL

iqu

id g

allo

ns

(po

un

ds)

e

Cor

rosi

ves

5,00

050

0G

aseo

us 8

10f

Liq

uefi

ed (

150)

5,00

050

0G

aseo

us 8

10f

Liq

uefi

ed (

150)

1,00

010

0

Hig

hly

Tox

ics

10(1

0)G

aseo

us 2

0g

Liq

uefi

ed (

4)g

10(1

0)G

aseo

us 2

0g

Liq

uifi

ed (

4)g

3(3

)

Tox

ics

500

(500

)G

aseo

us 8

10f

Liq

uefi

ed (

150)

f50

0(5

00)

Gas

eous

810

f

Liq

uefi

ed (

150)

f12

5(1

25)





TA

BL

E 5

003.

1.1(

3)M

AX

IMU

M A

LL

OW

AB

LE

QU

AN

TIT

Y P

ER

CO

NT

RO

L A

RE

A O

F H

AZ

AR

DO

US

MA

TE

RIA

LS

PO

SIN

G A

PH

YS

ICA

L H

AZ

AR

D IN

AN

OU

TD

OO

R C

ON

TR

OL

AR

EA

a, b

, c, d

For

SI:

1 po

und

= 0

.454

kg,

1 g

allo

n =

3.7

85 L

, 1 c

ubic

foo

t = 0

.028

32 m

3 .a.

For

gal

lons

of

liqu

ids,

div

ide

the

amou

nt in

pou

nds

by 1

0 in

acc

orda

nce

wit

h S

ecti

on 5

003.

1.2.

b.T

he a

ggre

gate

qua

ntiti

es in

sto

rage

and

use

sha

ll no

t exc

eed

the

quan

tity

liste

d fo

r st

orag

e.c.

The

agg

rega

te q

uant

ity

of n

onfl

amm

able

sol

id a

nd n

onfl

amm

able

or

nonc

ombu

stib

le li

quid

haz

ardo

us m

ater

ials

all

owed

in o

utdo

or s

tora

ge p

er s

ingl

e pr

oper

ty u

nder

the

sam

e ow

ners

hip

or c

ontr

ol u

sed

for

reta

il or

who

lesa

le s

ales

is a

llow

ed to

exc

eed

the

max

imum

allo

wab

le q

uant

ity p

er c

ontr

ol a

rea

whe

n su

ch s

tora

ge is

in a

ccor

danc

e w

ith

Sec

tion

500

3.11

.d.

Qua

ntit

ies

in p

aren

thes

es in

dica

te q

uant

ity u

nits

in p

aren

thes

es a

t the

hea

d of

eac

h co

lum

n.

MA

TE

RIA

LC

LA

SS

ST

OR

AG

Eb

US

E-C

LO

SE

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ntity

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on 5

003.

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5003.2.2.2 Additional regulations for supply pipingfor health-hazard materials. Supply piping and tub-ing for gases and liquids having a health-hazard rank-ing of 3 or 4 in accordance with NFPA 704 shall be inaccordance with ASME B31.3 and the following:

1. Piping and tubing utilized for the transmission ofhighly toxic, toxic or highly volatile corrosiveliquids and gases shall have welded, threaded orflanged connections throughout except for con-nections located within a ventilated enclosure ifthe material is a gas, or an approved method ofdrainage or containment is provided for connec-tions if the material is a liquid.

2. Piping and tubing shall not be located within cor-ridors, within any portion of a means of egressrequired to be enclosed in fire-resistance-ratedconstruction or in concealed spaces in areas notclassified as Group H occupancies.

Exception: Piping and tubing within the spacedefined by the walls of corridors and the floor orroof above or in concealed spaces above other occu-pancies when installed in accordance with Section415.10.6.4 of the California Building Code forGroup H-5 occupancies.

5003.2.3 Equipment, machinery and alarms. Equip-ment, machinery and required detection and alarm systemsassociated with the use, storage or handling of hazardousmaterials shall be listed or approved.

5003.2.4 Installation of tanks. Installation of tanks shallbe in accordance with Sections 5003.2.4.1 through5003.2.4.2.1.

5003.2.4.1 Underground tanks. Underground tanksused for the storage of liquid hazardous materials shallbe provided with secondary containment. In lieu of pro-viding secondary containment for an underground tank,an above-ground tank in an underground vault comply-ing with Section 5704.2.8 shall be permitted.

5003.2.4.2 Above-ground tanks. Above-ground sta-tionary tanks used for the storage of hazardous materi-als shall be located and protected in accordance withthe requirements for outdoor storage of the particularmaterial involved.

Exception: Above-ground tanks that are installed invaults complying with Section 5303.16 or 5704.2.8shall not be required to comply with location andprotection requirements for outdoor storage.

5003.2.4.2.1 Marking. Above-ground stationarytanks shall be marked as required by Section 5003.5.

5003.2.5 Empty containers and tanks. Empty containersand tanks previously used for the storage of hazardousmaterials shall be free from residual material and vapor asdefined by DOTn, the Resource Conservation and Recov-ery Act (RCRA) or other regulating authority or main-tained as specified for the storage of hazardous material.

5003.2.6 Maintenance. In addition to the requirements ofSection 5003.2.3, equipment, machinery and required

detection and alarm systems associated with hazardousmaterials shall be maintained in an operable condition.Defective containers, cylinders and tanks shall be removedfrom service, repaired or disposed of in an approved man-ner. Defective equipment or machinery shall be removedfrom service and repaired or replaced. Required detectionand alarm systems shall be replaced or repaired wheredefective.

5003.2.6.1 Tanks out of service for 90 days. Station-ary tanks not used for a period of 90 days shall be prop-erly safeguarded or removed in an approved manner.Such tanks shall have the fill line, gauge opening andpump connection secured against tampering. Vent linesshall be properly maintained.

5003.2.6.1.1 Return to service. Tanks that are to beplaced back in service shall be tested in an approvedmanner.

5003.2.6.2 Defective containers and tanks. Defectivecontainers and tanks shall be removed from service,repaired in accordance with approved standards or dis-posed of in an approved manner.

5003.2.7 Liquid-level limit control. Atmospheric tankshaving a capacity greater than 500 gallons (1893 L) andwhich contain hazardous material liquids shall beequipped with a liquid-level limit control or otherapproved means to prevent overfilling of the tank.

5003.2.8 Seismic protection. Machinery and equipmentutilizing hazardous materials shall be braced and anchoredin accordance with the seismic design requirements of theCalifornia Building Code for the seismic design categoryin which the machinery or equipment is classified.

5003.2.9 Testing. The equipment, devices and systemslisted in Section 5003.2.9.1 shall be tested at the time ofinstallation and at one of the intervals listed in Section5003.2.9.2. Written records of the tests conducted or main-tenance performed shall be maintained in accordance withthe provisions of Section 107.2.1.

Exceptions:

1. Periodic testing shall not be required whereapproved written documentation is provided stat-ing that testing will damage the equipment,device or system and the equipment, device orsystem is maintained as specified by the manu-facturer.

2. Periodic testing shall not be required for equip-ment, devices and systems that fail in a fail-safemanner.

3. Periodic testing shall not be required for equip-ment, devices and systems that self-diagnose andreport trouble. Records of the self-diagnosis andtrouble reporting shall be made available to thefire code official.

4. Periodic testing shall not be required if systemactivation occurs during the required test cyclefor the components activated during the testcycle.





5. Approved maintenance in accordance with Sec-tion 5003.2.6 that is performed not less thanannually or in accordance with an approvedschedule shall be allowed to meet the testingrequirements set forth in Sections 5003.2.9.1 and5003.2.9.2.

5003.2.9.1 Equipment, devices and systems requir-ing testing. The following equipment, systems anddevices shall be tested in accordance with Sections5003.2.9 and 5003.2.9.2.

1. Gas detection systems, alarms and automaticemergency shutoff valves required by Section6004.2.2.10 for highly toxic and toxic gases.

2. Limit control systems for liquid level, tempera-ture and pressure required by Sections 5003.2.7,5004.8 and 5005.1.4.

3. Emergency alarm systems and supervisionrequired by Sections 5004.9 and 5005.4.4.

4. Monitoring and supervisory systems required bySections 5004.10 and 5005.1.6.

5. Manually activated shutdown controls requiredby Section 6403.1.1.1 for compressed gas sys-tems conveying pyrophoric gases.

5003.2.9.2 Testing frequency. The equipment, sys-tems and devices listed in Section 5003.2.9.1 shall betested at one of the frequencies listed below:

1. Not less than annually;

2. In accordance with the approved manufacturer’srequirements;

3. In accordance with approved recognized industrystandards; or

4. In accordance with an approved schedule.

5003.3 Release of hazardous materials. Hazardous materi-als in any quantity shall not be released into a sewer, stormdrain, ditch, drainage canal, creek, stream, river, lake or tidalwaterway or on the ground, sidewalk, street, highway or intothe atmosphere.

Exceptions:

1. The release or emission of hazardous materials isallowed when in compliance with federal, state orlocal governmental agencies, regulations or permits.

2. The release of pesticides is allowed when used inaccordance with registered label directions.

3. The release of fertilizer and soil amendments isallowed when used in accordance with manufac-turer’s specifications.

5003.3.1 Unauthorized discharges. When hazardousmaterials are released in quantities reportable under state,federal or local regulations, the fire code official shall benotified and the following procedures required in accor-dance with Sections 5003.3.1.1 through 5003.3.1.4.

5003.3.1.1 Records. Accurate records shall be kept ofthe unauthorized discharge of hazardous materials bythe permittee.

5003.3.1.2 Preparation. Provisions shall be made forcontrolling and mitigating unauthorized discharges.

5003.3.1.3 Control. When an unauthorized dischargecaused by primary container failure is discovered, theinvolved primary container shall be repaired orremoved from service.

5003.3.1.4 Responsibility for cleanup. The person,firm or corporation responsible for an unauthorized dis-charge shall institute and complete all actions necessaryto remedy the effects of such unauthorized discharge,whether sudden or gradual, at no cost to the jurisdic-tion. When deemed necessary by the fire code official,cleanup may be initiated by the fire department or by anauthorized individual or firm. Costs associated withsuch cleanup shall be borne by the owner, operator orother person responsible for the unauthorized dis-charge.

5003.4 Material Safety Data Sheets. Material Safety DataSheets (MSDS) shall be readily available on the premises forhazardous materials regulated by this chapter. When a haz-ardous substance is developed in a laboratory, available infor-mation shall be documented.

Exception: Designated hazardous waste.

5003.5 Hazard identification signs. Unless otherwiseexempted by the fire code official, visible hazard identifica-tion signs as specified in NFPA 704 for the specific materialcontained shall be placed on stationary containers and above-ground tanks and at entrances to locations where hazardousmaterials are stored, dispensed, used or handled in quantitiesrequiring a permit and at specific entrances and locations des-ignated by the fire code official.

5003.5.1 Markings. Individual containers, cartons orpackages shall be conspicuously marked or labeled in anapproved manner. Rooms or cabinets containing com-pressed gases shall be conspicuously labeled: COM-PRESSED GAS.

5003.6 Signs. Signs and markings required by Sections5003.5 and 5003.5.1 shall not be obscured or removed, shallbe in English as a primary language or in symbols allowed bythis code, shall be durable, and the size, color and letteringshall be approved.

5003.7 Sources of ignition. Sources of ignition shall complywith Sections 5003.7.1 through 5003.7.3.

5003.7.1 Smoking. Smoking shall be prohibited and “NoSmoking” signs provided as follows:

1. In rooms or areas where hazardous materials arestored or dispensed or used in open systems inamounts requiring a permit in accordance with Sec-tion 5001.5.

2. Within 25 feet (7620 mm) of outdoor storage, dis-pensing or open use areas.

3. Facilities or areas within facilities that have beendesignated as totally “no smoking” shall have “NoSmoking” signs placed at all entrances to the facilityor area. Designated areas within such facilitieswhere smoking is permitted either permanently or





temporarily, shall be identified with signs designat-ing that smoking is permitted in these areas only.

4. In rooms or areas where flammable or combustiblehazardous materials are stored, dispensed or used.

Signs required by this section shall be in English as aprimary language or in symbols allowed by this code andshall comply with Section 310.

5003.7.2 Open flames. Open flames and high-temperaturedevices shall not be used in a manner which creates a haz-ardous condition and shall be listed for use with the haz-ardous materials stored or used.

5003.7.3 Industrial trucks. Powered industrial trucksused in areas designated as hazardous (classified) loca-tions in accordance with California Electrical Code shallbe listed and labeled for use in the environment intendedin accordance with NFPA 505.

5003.8 Construction requirements. Buildings, controlareas, enclosures and cabinets for hazardous materials shallbe in accordance with Sections 5003.8.1 through 5003.8.6.3.

5003.8.1 Buildings. Buildings, or portions thereof, inwhich hazardous materials are stored, handled or used

shall be constructed in accordance with the CaliforniaBuilding Code.

5003.8.2 Required detached buildings. Group H occu-pancies containing quantities of hazardous materials inexcess of those set forth in Table 5003.8.2 shall be indetached buildings.

5003.8.3 Control areas. Control areas shall comply withSections 5003.8.3.1 through 5003.8.3.5.

5003.8.3.1 Construction requirements. Control areasshall be separated from each other by fire barriers con-structed in accordance with Section 707 of the Califor-nia Building Code or horizontal assemblies constructedin accordance with Section 711 of the California Build-ing Code, or both.

5003.8.3.2 Percentage of maximum allowable quan-tities. The percentage of maximum allowable quantitiesof hazardous materials per control area allowed at eachfloor level within a building shall be in accordance withTable 5003.8.3.2.

5003.8.3.3 Number. The maximum number of controlareas per floor within a building shall be in accordancewith Table 5003.8.3.2.

TABLE 5003.8.2DETACHED BUILDING REQUIRED

For SI: 1 pound = 0.454 kg, 1 cubic foot = 0.02832 m3, 1 ton = 2000 lbs. = 907.2 kg.a. For materials which are detonable, the distance to other buildings or lot lines shall be as specified in the California Building Code. For materials classified as

explosives, the required separation distances shall be as specified in Chapter 56.b. “Maximum Allowable Quantity” means the maximum allowable quantity per control area set forth in Table 5003.1.1(1).c. Limited to Division 1.4 materials and articles, including articles packaged for shipment, that are not regulated as an explosive under Bureau of Alcohol,

Tobacco, Firearms and Explosives regulations, or unpackaged articles used in process operations that do not propagate a detonation or deflagration betweenarticles, providing the net explosive weight of individual articles does not exceed 1 pound.

A DETACHED BUILDING IS REQUIRED WHEN THE QUANTITY OF MATERIAL EXCEEDS THAT LISTED HEREIN

Material Class Solids and liquids (tons)a, b Gases (cubic feet)a, b

Explosives

Division 1.1Division 1.2Division 1.3Division 1.4Division 1.4c

Division 1.5Division 1.6

Maximum Allowable QuantityMaximum Allowable QuantityMaximum Allowable QuantityMaximum Allowable Quantity

1Maximum Allowable QuantityMaximum Allowable Quantity

Not Applicable

Oxidizers Class 4 Maximum Allowable Quantity Maximum Allowable Quantity

Unstable (reactives) detonable Class 3 or 4 Maximum Allowable Quantity Maximum Allowable Quantity

Oxidizer, liquids and solids Class 3Class 2

1,2002,000

Not Applicable

Organic peroxides

DetonableClass IClass IIClass III

Maximum Allowable QuantityMaximum Allowable Quantity

2550

Not Applicable

Unstable (reactives) nondetonable Class 3Class 2

125

2,00010,000

Water reactives Class 3Class 2

125 Not Applicable

Pyrophoric gases Not Applicable Not Applicable 2,000





5003.8.3.4 Fire-resistance-rating requirements. Therequired fire-resistance rating for fire barriers shall bein accordance with Table 5003.8.3.2. The floor assem-bly of the control area and the construction supportingthe floor of the control area shall have a fire-resistancerating of not less than 2-hours.

Exception: The floor assembly of the control areaand the construction supporting the floor of the con-trol area is allowed to be 1-hour fire-resistance ratedin buildings of Type IIA, IIIA and VA construction,provided that both of the following conditions exist:

1. The building is equipped throughout with anautomatic sprinkler system in accordance withSection 903.3.1.1; and

2. The building is three stories or less abovegrade plane.

5003.8.3.5 Hazardous material in Group M displayand storage areas and in Group S storage areas. Theaggregate quantity of nonflammable solid and nonflam-mable or noncombustible liquid hazardous materialsallowed within a single control area of a Group M dis-play and storage area or a Group S storage area isallowed to exceed the maximum allowable quantitiesper control area specified in Tables 5003.1.1(1) and5003.1.1(2) without classifying the building or use as aGroup H occupancy, provided that the materials aredisplayed and stored in accordance with Section5003.11.

5003.8.4 Gas rooms. Where a gas room is provided tocomply with the provisions of Chapter 60, the gas roomshall be in accordance with Sections 5003.8.4.1 and5003.8.4.2.

5003.8.4.1 Construction. Gas rooms shall be protectedwith an automatic sprinkler system. Gas rooms shall beseparated from the remainder of the building in accor-dance with the requirements of the California Building

Code based on the occupancy group into which it hasbeen classified.

5003.8.4.2 Ventilation system. The ventilation systemfor gas rooms shall be designed to operate at a negativepressure in relation to the surrounding area. Highlytoxic and toxic gases shall also comply with Section6004.2.2.6. The ventilation system shall be installed inaccordance with the California Mechanical Code.

5003.8.5 Exhausted enclosures. Where an exhaustedenclosure is used to increase maximum allowable quantityper control area or when the location of hazardous materi-als in exhausted enclosures is provided to comply with theprovisions of Chapter 60, the exhausted enclosure shall bein accordance with Sections 5003.8.5.1 through5003.8.5.3.

5003.8.5.1 Construction. Exhausted enclosures shallbe of noncombustible construction.

5003.8.5.2 Ventilation. Exhausted enclosures shall beprovided with an exhaust ventilation system. The venti-lation system for exhausted enclosures shall bedesigned to operate at a negative pressure in relation tothe surrounding area. Ventilation systems used forhighly toxic and toxic gases shall also comply withItems 1, 2 and 3 of Section 6004.1.2. The ventilationsystem shall be installed in accordance with the Cali-fornia Mechanical Code.

5003.8.5.3 Fire-extinguishing system. Exhaustedenclosures where flammable materials are used shall beprotected by an approved automatic fire-extinguishingsystem in accordance with Chapter 9.

5003.8.6 Gas cabinets. Where a gas cabinet is used toincrease the maximum allowable quantity per control areaor when the location of compressed gases in gas cabinetsis provided to comply with the provisions of Chapter 60,the gas cabinet shall be in accordance with Sections5003.8.6.1 through 5003.8.6.3.

TABLE 5003.8.3.2DESIGN AND NUMBER OF CONTROL AREAS

a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in thefootnotes to those tables.

b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building.

FLOOR LEVELPERCENTAGE OF THE MAXIMUM

ALLOWABLE QUANTITY PER CONTROL AREAa

NUMBER OF CONTROLAREAS PER FLOOR

FIRE-RESISTANCE RATING FOR FIRE BARRIERS IN HOURSb

Above grade plane

Higher than 97-9654321

55

12.512.512.55075

100

12222234

22222111

Below grade plane 12

Lower than 2

7550

Not Allowed

32

Not Allowed

11

Not Allowed





5003.8.6.1 Construction. Gas cabinets shall be con-structed in accordance with the following:

1. Constructed of not less than 0.097-inch (2.5 mm)(No. 12 gage) steel.

2. Be provided with self-closing limited accessports or noncombustible windows to give accessto equipment controls.

3. Be provided with self-closing doors.

4. Gas cabinet interiors shall be treated, coated orconstructed of materials that are compatible withthe hazardous materials stored. Such treatment,coating or construction shall include the entireinterior of the cabinet.

5003.8.6.2 Ventilation. Gas cabinets shall be providedwith an exhaust ventilation system. The ventilation sys-tem for gas cabinets shall be designed to operate at anegative pressure in relation to the surrounding area.Ventilation systems used for highly toxic and toxicgases shall also comply with Items 1, 2 and 3 of Section6004.1.2. The ventilation system shall be installed inaccordance with the California Mechanical Code.

5003.8.6.3 Maximum number of cylinders per gascabinet. The number of cylinders contained in a singlegas cabinet shall not exceed three.

5003.8.7 Hazardous materials storage cabinets. Wherestorage cabinets are used to increase maximum allowablequantity per control area or to comply with this chapter,such cabinets shall be in accordance with Sections5003.8.7.1 and 5003.8.7.2.

5003.8.7.1 Construction. The interior of cabinets shallbe treated, coated or constructed of materials that arenonreactive with the hazardous material stored. Suchtreatment, coating or construction shall include theentire interior of the cabinet. Cabinets shall either belisted in accordance with UL 1275 as suitable for theintended storage or constructed in accordance with thefollowing:

1. Cabinets shall be of steel having a thickness ofnot less than 0.0478 inch (1.2 mm) (No. 18 gage).The cabinet, including the door, shall be doublewalled with a 11/2-inch (38 mm) airspace betweenthe walls. Joints shall be riveted or welded andshall be tight fitting. Doors shall be well fitted,self-closing and equipped with a self-latchingdevice.

2. The bottoms of cabinets utilized for the storage ofliquids shall be liquid tight to a minimum heightof 2 inches (51 mm).

Electrical equipment and devices within cabinetsused for the storage of hazardous gases or liquids shallbe in accordance with California Electrical Code.

5003.8.7.2 Warning markings. Cabinets shall beclearly identified in an approved manner with red let-ters on a contrasting background to read:

HAZARDOUS—KEEP FIRE AWAY.

5003.9 General safety precautions. General precautions forthe safe storage, handling or care of hazardous materials shallbe in accordance with Sections 5003.9.1 through 5003.9.10.

5003.9.1 Personnel training and written procedures.Persons responsible for the operation of areas in whichhazardous materials are stored, dispensed, handled or usedshall be familiar with the chemical nature of the materialsand the appropriate mitigating actions necessary in theevent of fire, leak or spill.

5003.9.1.1 Fire department liaison. Responsible per-sons shall be designated and trained to be liaison per-sonnel to the fire department. These persons shall aidthe fire department in preplanning emergencyresponses and identifying the locations where hazard-ous materials are located, and shall have access toMaterial Safety Data Sheets and be knowledgeable inthe site’s emergency response procedures.

5003.9.2 Security. Storage, dispensing, use and handlingareas shall be secured against unauthorized entry and safe-guarded in a manner approved by the fire code official.

5003.9.3 Protection from vehicles. Guard posts or otherapproved means shall be provided to protect storage tanksand connected piping, valves and fittings; dispensingareas; and use areas subject to vehicular damage in accor-dance with Section 312.

5003.9.4 Electrical wiring and equipment. Electricalwiring and equipment shall be installed and maintained inaccordance with California Electrical Code.

5003.9.5 Static accumulation. When processes or condi-tions exist where a flammable mixture could be ignited bystatic electricity, means shall be provided to prevent theaccumulation of a static charge.

5003.9.6 Protection from light. Materials that are sensi-tive to light shall be stored in containers designed to pro-tect them from such exposure.

5003.9.7 Shock padding. Materials that are shock sensi-tive shall be padded, suspended or otherwise protectedagainst accidental dislodgement and dislodgement duringseismic activity.

5003.9.8 Separation of incompatible materials. Incom-patible materials in storage and storage of materials thatare incompatible with materials in use shall be separatedwhen the stored materials are in containers having a capac-ity of more than 5 pounds (2 kg) or 0.5 gallon (2 L). Sepa-ration shall be accomplished by:

1. Segregating incompatible materials in storage by adistance of not less than 20 feet (6096 mm).

2. Isolating incompatible materials in storage by a non-combustible partition extending not less than 18inches (457 mm) above and to the sides of the storedmaterial.

3. Storing liquid and solid materials in hazardousmaterial storage cabinets.

4. Storing compressed gases in gas cabinets orexhausted enclosures in accordance with Sections5003.8.5 and 5003.8.6. Materials that are incompati-





ble shall not be stored within the same cabinet orexhausted enclosure.

5003.9.9 Shelf storage. Shelving shall be of substantialconstruction, and shall be braced and anchored in accor-dance with the seismic design requirements of the Califor-nia Building Code for the seismic zone in which thematerial is located. Shelving shall be treated, coated orconstructed of materials that are compatible with the haz-ardous materials stored. Shelves shall be provided with alip or guard when used for the storage of individual con-tainers.

Exceptions:

1. Storage in hazardous material storage cabinets orlaboratory furniture specifically designed forsuch use.

2. Storage of hazardous materials in amounts notrequiring a permit in accordance with Section5001.5.

Shelf storage of hazardous materials shall be main-tained in an orderly manner.

5003.9.10 Safety cans. Safety cans shall be listed inaccordance with UL 30 when used to increase the maxi-mum allowable quantities per control area of flammable orcombustible liquids in accordance with Table 5003.1.1(1).Safety cans listed in accordance with UL 1313 are allowedfor flammable and combustible liquids when not used toincrease the maximum allowable quantities per controlarea and for other hazardous material liquids in accor-dance with the listing.

5003.10 Handling and transportation. In addition to therequirements of Section 5003.2, the handling and transporta-tion of hazardous materials in corridors elevators and exitenclosures for stairways and ramps shall be in accordancewith Sections 5003.10.1 through 5003.10.4.4.

5003.10.1 Valve protection. Hazardous material gas con-tainers, cylinders and tanks in transit shall have their pro-tective caps in place. Containers, cylinders and tanks ofhighly toxic or toxic compressed gases shall have theirvalve outlets capped or plugged with an approved closuredevice in accordance with Chapter 53.

5003.10.2 Carts and trucks required. Liquids in contain-ers exceeding 5 gallons (19 L) in a corridor or exit enclo-sure for a stairway or ramp shall be transported withincorridors or exit enclosures, shall be on a cart or truck.Containers of hazardous materials having a hazard rankingof 3 or 4 in accordance with NFPA 704 and transportedwithin corridors or interior exit stairways and ramps, shallbe on a cart or truck. Where carts and trucks are requiredfor transporting hazardous materials, they shall be inaccordance with Section 5003.10.3. Exceptions 1 through4 shall not apply where elevators are utilized.

Exceptions:

1. Two hazardous material liquid containers, whichare hand carried in acceptable safety carriers.

2. Not more than four drums not exceeding 55 gal-lons (208 L) each, which are transported by suit-able drum trucks.

3. Containers and cylinders of compressed gases,which are transported by approved hand trucks,and containers and cylinders not exceeding 25pounds (11 kg), which are hand carried.

4. Solid hazardous materials not exceeding 100pounds (45 kg), which are transported byapproved hand trucks, and a single container notexceeding 50 pounds (23 kg), which is hand car-ried.

5003.10.2.1 Above the 10th story. Above the 10th storyof any occupancy, all vertical handling and transporta-tion of hazardous materials in the building shall be inapproved carts.

5003.10.2.2 Transportation of hazardous materialsabove the 10th story The handling and transportationof hazardous materials above the 10th story shall belimited to 5 percent of the maximum allowable quanti-ties of Tables 5003.1(1) and (2). Quantities are permit-ted to be increased by 100 percent in buildings with anapproved automatic sprinkler system in accordancewith Section 903.3.1.1. Materials where footnote gapplies shall not be increased.

5003.10.3 Carts and trucks. Carts and trucks required bySection 5003.10.2 to be used to transport hazardous mate-rials shall be in accordance with Sections 5003.10.3.1through 5003.10.3.6.

5003.10.3.1 Design. Carts and trucks used to transporthazardous materials shall be designed to provide a sta-ble base for the commodities to be transported and shallhave a means of restraining containers to prevent acci-dental dislodgement. Compressed gas cylinders placedon carts and trucks shall be individually restrained.

5003.10.3.2 Speed-control devices. Carts and trucksshall be provided with a device that will enable theoperator to control safely movement by providing stopsor speed-reduction devices.

5003.10.3.3 Construction. Construction materials forhazardous material carts or trucks shall be compatiblewith the material transported. The cart or truck shall beof substantial construction.

5003.10.3.4 Spill control. Carts and trucks transportingliquids shall be capable of containing a spill from thelargest single container transported.

5003.10.3.5 Attendance. Carts and trucks used totransport materials shall not obstruct or be left unat-tended within any part of a means of egress.

5003.10.3.6 Incompatible materials. Incompatiblematerials shall not be transported on the same cart ortruck.





5003.10.4 Elevators utilized to transport hazardous mate-rials.

5003.10.4.1. When transporting hazardous materials,elevators shall have no other passengers other than theindividual(s) handling the chemical transport cart.

5003.10.4.2. Hazardous materials liquid containersshall have a maximum capacity of 20 liters (5.28 gal).

5003.10.4.3. Toxic and highly-toxic gases shall be lim-ited to a container of a maximum water capacity of 1pound.

5003.10.4.4. Means shall be provided to prevent theelevator from being summoned to other floors.

5003.11 Group M storage and display and Group S stor-age. The aggregate quantity of nonflammable solid and non-flammable or noncombustible liquid hazardous materialsstored and displayed within a single control area of a GroupM occupancy, or an outdoor control area, or stored in a singlecontrol area of a Group S occupancy, is allowed to exceed themaximum allowable quantity per control area indicated in

Section 5003.1 when in accordance with Sections 5003.11.1through 5003.11.3.10.

5003.11.1 Maximum allowable quantity per controlarea in Group M or S occupancies. The aggregateamount of nonflammable solid and nonflammable or non-combustible liquid hazardous materials stored and dis-played within a single control area of a Group Moccupancy or stored in a single control area of a Group Soccupancy shall not exceed the amounts set forth in Table5003.11.1.

5003.11.2 Maximum allowable quantity per outdoorcontrol area in Group M or S occupancies. The aggre-gate amount of nonflammable solid and nonflammable ornoncombustible liquid hazardous materials stored and dis-played within a single outdoor control area of a Group Moccupancy shall not exceed the amounts set forth in Table5003.11.1.

5003.11.3 Storage and display. Storage and display shallbe in accordance with Sections 5003.11.3.1 through5003.11.3.10.

TABLE 5003.11.1MAXIMUM ALLOWABLE QUANTITY PER INDOOR AND OUTDOOR CONTROL AREA IN GROUP M

AND S OCCUPANCIES—NONFLAMMABLE SOLIDS, NONFLAMMABLE AND NONCOMBUSTIBLE LIQUIDSd, e, f

For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 cubic foot = 0.02832 m3.a. Hazard categories are as specified in Section 5001.2.2.b. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance

with Section 903.3.1.1. When Note c also applies, the increase for both notes shall be applied accumulatively.c. Maximum allowable quantities shall be increased 100 percent when stored in approved storage cabinets in accordance with Section 5003.8. When Note b also

applies, the increase for both notes shall be applied accumulatively.d. See Table 5003.8.3.2 for design and number of control areas.e. Maximum allowable quantities for other hazardous material categories shall be in accordance with Section 5003.1.f. Maximum allowable quantities shall be increased 100 percent in outdoor control areas.g. Maximum allowable quantities are permitted to be increased to 2,250 pounds when individual packages are in the original sealed containers from the

manufacturer or packager and do not exceed 10 pounds each.h. Maximum allowable quantities are permitted to be increased to 4,500 pounds when individual packages are in the original sealed containers from the

manufacturer or packager and do not exceed 10 pounds each.i. Quantities are unlimited where protected by an automatic sprinkler system.j. Quantities are unlimited in an outdoor control area.

CONDITION MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA

Materiala Class Solids pounds Liquids gallons

A. HEALTH-HAZARD MATERIALS—NONFLAMMABLE AND NONCOMBUSTIBLE SOLIDS AND LIQUIDS

1. Corrosivesb, c Not Applicable 9,750 975

2. Highly Toxics Not Applicable 20b, c 2b, c

3. Toxicsb, c Not Applicable 1,000 100

B. PHYSICAL-HAZARD MATERIALS—NONFLAMMABLE AND NONCOMBUSTIBLE SOLIDS AND LIQUIDS

1. Oxidizersb, c

4 Not Allowed Not Allowed

3 1,150g 115

2 2,250h 225

1 18,000i, j 1,800i, j

2. Unstable (Reactives)b, c

4 Not Allowed Not Allowed

3 550 55

2 1,150 115

1 Not Limited Not Limited

3. Water Reactives

3b, c 550 55

2b, c 1,150 115

1 Not Limited Not Limited





5003.11.3.1 Density. Storage and display of solids shallnot exceed 200 pounds per square foot (976 kg/m2) offloor area actually occupied by solid merchandise. Stor-age and display of liquids shall not exceed 20 gallonsper square foot (0.50 L/m2) of floor area actually occu-pied by liquid merchandise.

5003.11.3.2 Storage and display height. Displayheight shall not exceed 6 feet (1829 mm) above the fin-ished floor in display areas of Group M occupancies.Storage height shall not exceed 8 feet (2438 mm) abovethe finished floor in storage areas of Group M andGroup S occupancies.

5003.11.3.3 Container location. Individual containersless than 5 gallons (19 L) or less than 25 pounds (11 kg)shall be stored or displayed on pallets, racks or shelves.

5003.11.3.4 Racks and shelves. Racks and shelvesused for storage or display shall be in accordance withSection 5003.9.9.

5003.11.3.5 Container type. Containers shall beapproved for the intended use and identified as to theircontent.

5003.11.3.6 Container size. Individual containers shallnot exceed 100 pounds (45 kg) for solids or 10 gallons(38 L) for liquids in storage and display areas.

5003.11.3.7 Incompatible materials. Incompatiblematerials shall be separated in accordance with Section5003.9.8.

5003.11.3.8 Floors. Floors shall be in accordance withSection 5004.12.

5003.11.3.9 Aisles. Aisles 4 feet (1219 mm) in widthshall be maintained on three sides of the storage or dis-play area.

5003.11.3.10 Signs. Hazard identification signs shallbe provided in accordance with Section 5003.5.

5003.12 Outdoor control areas. Outdoor control areas forhazardous materials in amounts not exceeding the maximumallowable quantity per outdoor control area shall be in accor-dance with the following:

1. Outdoor control areas shall be kept free from weeds,debris and common combustible materials not neces-sary to the storage. The area surrounding an outdoorcontrol area shall be kept clear of such materials for aminimum of 15 feet (4572 mm).

2. Outdoor control areas shall be located not closer than20 feet (6096 mm) from a lot line that can be builtupon, public street, public alley or public way.

Exceptions:

1. For solid and liquid hazardous materials, a 2-hour fire-resistance-rated wall without open-ings extending not less than 30 inches (762mm) above and to the sides of the storage areashall be allowed in lieu of such distance.

2. For compressed gas hazardous materials,unless otherwise specified, the minimumrequired distances shall not apply when fire

barriers without openings or penetrations hav-ing a minimum fire-resistance rating of 2hours interrupt the line of sight between thestorage and the exposure. The configuration ofthe fire barrier shall be designed to allow natu-ral ventilation to prevent the accumulation ofhazardous gas concentrations.

3. Where a property exceeds 10,000 square feet(929 m2), a group of two outdoor control areasis allowed when approved and when each con-trol area is separated by a minimum distanceof 50 feet (15 240 mm).

4. Where a property exceeds 35,000 square feet(3252 m2), additional groups of outdoor con-trol areas are allowed when approved andwhen each group is separated by a minimumdistance of 300 feet (91 440 mm).

SECTION 5004STORAGE

5004.1 Scope. Storage of hazardous materials in amountsexceeding the maximum allowable quantity per control areaas set forth in Section 5003.1 shall be in accordance with Sec-tions 5001, 5003 and 5004. Storage of hazardous materials inamounts not exceeding the maximum allowable quantity percontrol area as set forth in Section 5003.1 shall be in accor-dance with Sections 5001 and 5003. Retail and wholesalestorage and display of nonflammable solid and nonflammableand noncombustible liquid hazardous materials in Group Moccupancies and Group S storage shall be in accordance withSection 5003.11.

5004.2 Spill control and secondary containment for liquidand solid hazardous materials. Rooms, buildings or areasused for the storage of liquid or solid hazardous materialsshall be provided with spill control and secondary contain-ment in accordance with Sections 5004.2.1 through 5004.2.3.

Exception: Outdoor storage of containers on approvedcontainment pallets in accordance with Section 5004.2.3.

5004.2.1 Spill control for hazardous material liquids.Rooms, buildings or areas used for the storage of hazard-ous material liquids in individual vessels having a capacityof more than 55 gallons (208 L), or in which the aggregatecapacity of multiple vessels exceeds 1,000 gallons (3785L), shall be provided with spill control to prevent the flowof liquids to adjoining areas. Floors in indoor locationsand similar surfaces in outdoor locations shall be con-structed to contain a spill from the largest single vessel byone of the following methods:

1. Liquid-tight sloped or recessed floors in indoor loca-tions or similar areas in outdoor locations.

2. Liquid-tight floors in indoor locations or similarareas in outdoor locations provided with liquid-tightraised or recessed sills or dikes.

3. Sumps and collection systems.

4. Other approved engineered systems.





Except for surfacing, the floors, sills, dikes, sumps andcollection systems shall be constructed of noncombustiblematerial, and the liquid-tight seal shall be compatible withthe material stored. When liquid-tight sills or dikes areprovided, they are not required at perimeter openings hav-ing an open-grate trench across the opening that connectsto an approved collection system.

5004.2.2 Secondary containment for hazardous mate-rial liquids and solids. Where required by Table 5004.2.2buildings, rooms or areas used for the storage of hazardousmaterials liquids or solids shall be provided with second-ary containment in accordance with this section when thecapacity of an individual vessel or the aggregate capacityof multiple vessels exceeds the following:

1. Liquids: Capacity of an individual vessel exceeds 55gallons (208 L) or the aggregate capacity of multiplevessels exceeds 1,000 gallons (3785 L); and

2. Solids: Capacity of an individual vessel exceeds 550pounds (250 kg) or the aggregate capacity of multi-ple vessels exceeds 10,000 pounds (4540 kg).

5004.2.2.1 Containment and drainage methods. Thebuilding, room or area shall contain or drain the hazard-ous materials and fire protection water through the useof one of the following methods:

1. Liquid-tight sloped or recessed floors in indoorlocations or similar areas in outdoor locations.

TABLE 5004.2.2REQUIRED SECONDARY CONTAINMENT—HAZARDOUS MATERIAL SOLIDS AND LIQUIDS STORAGE

MATERIALINDOOR STORAGE OUTDOOR STORAGE

Solids Liquids Solids Liquids

1. Physical-hazard materials

Combustible liquids

Class II

NotApplicable

See Chapter 57

NotApplicable

See Chapte 57

Class IIIA See Chapter 57 See Chapter 57

Class IIIB See Chapter 57 See Chapter 57

Cryogenic fluids See Chapter 55 See Chapter 55

Explosives See Chapter 56 See Chapter 56

Flammable liquids

Class IANot

Applicable

See Chapter 57Not

Applicable

See Chapter 57

Class IB See Chapter 57 See Chapter 57

Class IC See Chapter 57 See Chapter 57

Flammable solids Not Required Not Applicable Not Required Not Applicable

Organic peroxides

Unclassified Detonable

Required Required Not Required Not RequiredClass I

Class II

Class III

Class IV

Class V Not Required Not Required Not Required Not Required

Oxidizers

Class 4

Required Required Not Required Not RequiredClass 3

Class 2

Class 1 Not Required Not Required Not Required Not Required

Pyrophorics Not Required Required Not Required Required

Unstable (reactives)

Class 4

Required Required Required RequiredClass 3

Class 2


Water reactives

Class 3Required Required Required Required

Class 2


2. Health-hazard materials

Corrosives Not Required Required Not Required Required

Highly toxics Required Required Required Required

Toxics





2. Liquid-tight floors in indoor locations or similarareas in outdoor locations provided with liquid-tight raised or recessed sills or dikes.

3. Sumps and collection systems.

4. Drainage systems leading to an approved loca-tion.

5. Other approved engineered systems.

5004.2.2.2 Incompatible materials. Incompatiblematerials used in open systems shall be separated fromeach other in the secondary containment system.

5004.2.2.3 Indoor design. Secondary containment forindoor storage areas shall be designed to contain a spillfrom the largest vessel plus the design flow volume offire protection water calculated to discharge from thefire-extinguishing system over the minimum requiredsystem design area or area of the room or area in whichthe storage is located, whichever is smaller. The con-tainment capacity shall be designed to contain the flowfor a period of 20 minutes.

5004.2.2.4 Outdoor design. Secondary containmentfor outdoor storage areas shall be designed to contain aspill from the largest individual vessel. If the area isopen to rainfall, secondary containment shall bedesigned to include the volume of a 24-hour rainfall asdetermined by a 25-year storm and provisions shall bemade to drain accumulations of groundwater and rain-water.

5004.2.2.5 Monitoring. An approved monitoringmethod shall be provided to detect hazardous materialsin the secondary containment system. The monitoringmethod is allowed to be visual inspection of the pri-mary or secondary containment, or other approvedmeans. Where secondary containment is subject to theintrusion of water, a monitoring method for detectingwater shall be provided. Where monitoring devices areprovided, they shall be connected to approved visual oraudible alarms.

5004.2.2.6 Drainage system design. Drainage systemsshall be in accordance with the California PlumbingCode and all of the following:

1. The slope of floors to drains in indoor locations,or similar areas in outdoor locations shall not beless than 1 percent.

2. Drains from indoor storage areas shall be sized tocarry the volume of the fire protection water asdetermined by the design density dischargedfrom the automatic fire-extinguishing systemover the minimum required system design area orarea of the room or area in which the storage islocated, whichever is smaller.

3. Drains from outdoor storage areas shall be sizedto carry the volume of the fire flow and the vol-ume of a 24-hour rainfall as determined by a 25-year storm.

4. Materials of construction for drainage systemsshall be compatible with the materials stored.

5. Incompatible materials used in open systemsshall be separated from each other in the drainagesystem.

6. Drains shall terminate in an approved locationaway from buildings, valves, means of egress,fire access roadways, adjoining property andstorm drains.

5004.2.3 Containment pallets. When used as an alterna-tive to spill control and secondary containment for outdoorstorage in accordance with the exception in Section5004.2, containment pallets shall comply with all of thefollowing:

1. A liquid-tight sump accessible for visual inspectionshall be provided.

2. The sump shall be designed to contain not less than66 gallons (250 L).

3. Exposed surfaces shall be compatible with materialstored.

4. Containment pallets shall be protected to preventcollection of rainwater within the sump.

5004.3 Ventilation. Indoor storage areas and storage build-ings shall be provided with mechanical exhaust ventilation ornatural ventilation where natural ventilation can be shown tobe acceptable for the materials as stored.

Exception: Storage areas for flammable solids complyingwith Chapter 59.

5004.3.1 System requirements. Exhaust ventilation sys-tems shall comply with all of the following:

1. Installation shall be in accordance with the Califor-nia Mechanical Code.

2. Mechanical ventilation shall be at a rate of not lessthan 1 cubic foot per minute per square foot[0.00508 m3/(s • m2)] of floor area over the storagearea.

3. Systems shall operate continuously unless alterna-tive designs are approved.

4. A manual shutoff control shall be provided outsideof the room in a position adjacent to the access doorto the room or in an approved location. The switchshall be a break-glass or other approved type andshall be labeled: VENTILATION SYSTEM EMER-GENCY SHUTOFF.

Exception: [For SFM] When exhaust systems con-taining explosive, corrosive, combustible, flamma-ble or highly toxic dusts, mists, fumes, vapors, orgases are 100 percent exhausted to the outside, anemergency ventilation system shutoff is not required.

5. Exhaust ventilation shall be designed to consider thedensity of the potential fumes or vapors released.For fumes or vapors that are heavier than air,exhaust shall be taken from a point within 12 inches(305 mm) of the floor. For fumes or vapors that arelighter than air, exhaust shall be taken from a pointwithin 12 inches (305 mm) of the highest point ofthe room.





6. The location of both the exhaust and inlet air open-ings shall be designed to provide air movementacross all portions of the floor or room to prevent theaccumulation of vapors.

7. Exhaust air shall not be recirculated to occupiedareas if the materials stored are capable of emittinghazardous vapors and contaminants have not beenremoved. Air contaminated with explosive or flam-mable vapors, fumes or dusts; flammable, highlytoxic or toxic gases; or radioactive materials shallnot be recirculated.

5004.4 Separation of incompatible hazardous materials.Incompatible materials shall be separated in accordance withSection 5003.9.8.

5004.5 Automatic sprinkler systems. Indoor storage areasand storage buildings shall be equipped throughout with anapproved automatic sprinkler system in accordance with Sec-tion 903.3.1.1. The design of the sprinkler system shall not beless than that required for Ordinary Hazard Group 2 with aminimum design area of 3,000 square feet (279 m2). Wherethe materials or storage arrangement are required by otherregulations to be provided with a higher level of sprinklersystem protection, the higher level of sprinkler system protec-tion shall be provided.

5004.6 Explosion control. Indoor storage rooms, areas andbuildings shall be provided with explosion control in accor-dance with Section 911.

5004.7 Standby or emergency power. Where mechanicalventilation, treatment systems, temperature control, alarm,detection or other electrically operated systems are required,such systems shall be provided with an emergency or standbypower system in accordance with California Electrical Codeand Section 604.

Exceptions:

1. Mechanical ventilation for storage of Class IB andClass IC flammable and combustible liquids inclosed containers not exceeding 61/2 gallons (25 L)capacity.

2. Storage areas for Class 1 and 2 oxidizers.

3. Storage areas for Class II, III, IV and V organic per-oxides.

4. Storage areas for asphyxiant, irritant and radioactivegases.

5. For storage areas for highly toxic or toxic materials,see Sections 6004.2.2.8 and 6004.3.4.2.

6. Standby power for mechanical ventilation, treatmentsystems and temperature control systems shall notbe required where an approved fail-safe engineeredsystem is installed.

5004.8 Limit controls. Limit controls shall be provided inaccordance with Sections 5004.8.1 and 5004.8.2.

5004.8.1 Temperature control. Materials that must bekept at temperatures other than normal ambient tempera-tures to prevent a hazardous reaction shall be providedwith an approved means to maintain the temperature

within a safe range. Redundant temperature control equip-ment that will operate on failure of the primary tempera-ture control system shall be provided. Where approved,alternative means that prevent a hazardous reaction areallowed.

5004.8.2 Pressure control. Stationary tanks and equip-ment containing hazardous material liquids that can gener-ate pressures exceeding design limits because of exposurefires or internal reaction shall have some form of construc-tion or other approved means that will relieve excessiveinternal pressure. The means of pressure relief shall ventto an approved location or to an exhaust scrubber or treat-ment system where required by Chapter 60.

5004.9 Emergency alarm. An approved manual emergencyalarm system shall be provided in buildings, rooms or areasused for storage of hazardous materials. Emergency alarm-initiating devices shall be installed outside of each interiorexit or exit access door of storage buildings, rooms or areas.Activation of an emergency alarm-initiating device shallsound a local alarm to alert occupants of an emergency situa-tion involving hazardous materials.

5004.10 Supervision and monitoring. Emergency alarm,detection and automatic fire-extinguishing systems requiredby Section 5004 shall be electrically supervised and moni-tored by an approved supervising station or, when approved,shall initiate an audible and visual signal at a constantlyattended on-site location.

5004.11 Clearance from combustibles. The area surround-ing an outdoor storage area or tank shall be kept clear of com-bustible materials and vegetation for a minimum distance of25 feet (7620 mm).

5004.12 Noncombustible floor. Except for surfacing, floorsof storage areas shall be of noncombustible construction.

5004.13 Weather protection. Where overhead noncombusti-ble construction is provided for sheltering outdoor hazardousmaterial storage areas, such storage shall not be consideredindoor storage when the area is constructed in accordancewith the requirements for weather protection as required bythe California Building Code.

Exception: Storage of explosive materials shall be consid-ered as indoor storage.

SECTION 5005USE, DISPENSING AND HANDLING

5005.1 General. Use, dispensing and handling of hazardousmaterials in amounts exceeding the maximum allowablequantity per control area set forth in Section 5003.1 shall bein accordance with Sections 5001, 5003 and 5005. Use, dis-pensing and handling of hazardous materials in amounts notexceeding the maximum allowable quantity per control areaset forth in Section 5003.1 shall be in accordance with Sec-tions 5001 and 5003.

5005.1.1 Separation of incompatible materials. Separa-tion of incompatible materials shall be in accordance withSection 5003.9.8.





5005.1.2 Noncombustible floor. Except for surfacing,floors of areas where liquid or solid hazardous materialsare dispensed or used in open systems shall be of noncom-bustible, liquid-tight construction.

5005.1.3 Spill control and secondary containment forhazardous material liquids. Where required by otherprovisions of Section 5005, spill control and secondarycontainment shall be provided for hazardous material liq-uids in accordance with Section 5004.2.

5005.1.4 Limit controls. Limit controls shall be providedin accordance with Sections 5005.1.4.1 through5005.1.4.4.

5005.1.4.1 High-liquid-level control. Open tanks inwhich liquid hazardous materials are used shall beequipped with a liquid-level limit control or othermeans to prevent overfilling of the tank.

5005.1.4.2 Low-liquid-level control. Approved safe-guards shall be provided to prevent a low-liquid level ina tank from creating a hazardous condition, includingbut not limited to, overheating of a tank or its contents.

5005.1.4.3 Temperature control. Temperature controlshall be provided in accordance with Section 5004.8.1.

5005.1.4.4 Pressure control. Pressure control shall beprovided in accordance with Section 5004.8.2.

5005.1.5 Standby or emergency power. Where mechani-cal ventilation, treatment systems, temperature control,manual alarm, detection or other electrically operated sys-tems are required, such systems shall be provided with anemergency or standby power system in accordance withCalifornia Electrical Code and Section 604.

Exceptions:

1. Standby power for mechanical ventilation, treat-ment systems and temperature control systemsshall not be required where an approved fail-safeengineered system is installed.

2. Systems for highly toxic or toxic gases shall beprovided with emergency power in accordancewith Sections 6004.2.2.8 and 6004.3.4.2.

5005.1.6 Supervision and monitoring. Manual alarm,detection and automatic fire-extinguishing systemsrequired by other provisions of Section 5005 shall be elec-trically supervised and monitored by an approved supervi-sory service or, when approved, shall initiate an audibleand visual signal at a constantly attended on-site location.

5005.1.7 Lighting. Adequate lighting by natural or artifi-cial means shall be provided.

5005.1.8 Fire-extinguishing systems. Indoor rooms orareas in which hazardous materials are dispensed or usedshall be protected by an automatic fire-extinguishing sys-tem in accordance with Chapter 9. Sprinkler system designshall not be less than that required for Ordinary Hazard,Group 2, with a minimum design area of 3,000 square feet(279 m2). Where the materials or storage arrangement arerequired by other regulations to be provided with a higherlevel of sprinkler system protection, the higher level ofsprinkler system protection shall be provided.

5005.1.9 Ventilation. Indoor dispensing and use areasshall be provided with exhaust ventilation in accordancewith Section 5004.3.

Exception: Ventilation is not required for dispensingand use of flammable solids other than finely dividedparticles.

5005.1.10 Liquid transfer. Liquids having a hazard rank-ing of 3 or 4 in accordance with NFPA 704 shall be trans-ferred by one of the following methods:

1. From safety cans complying with UL 30.

2. Through an approved closed piping system.

3. From containers or tanks by an approved pump tak-ing suction through an opening in the top of the con-tainer or tank.

4. From containers or tanks by gravity through anapproved self-closing or automatic-closing valvewhen the container or tank and dispensing opera-tions are provided with spill control and secondarycontainment in accordance with Section 5004.2.Highly toxic liquids shall not be dispensed by grav-ity from tanks.

5. Approved engineered liquid transfer systems.

Exceptions:

1. Liquids having a hazard ranking of 4 when dis-pensed from approved containers not exceeding1.3 gallons (5 L).

2. Liquids having a hazard ranking of 3 when dis-pensed from approved containers not exceeding5.3 gallons (20 L).

5005.1.11 Design. Systems shall be suitable for the useintended and shall be designed by persons competent insuch design. Controls shall be designed to prevent materi-als from entering or leaving the process or reaction systemat other than the intended time, rate or path. Where failureof an automatic control could result in a dangerous condi-tion or reaction, the automatic control shall be fail-safe.

5005.2 Indoor dispensing and use. Indoor dispensing anduse of hazardous materials shall be in buildings complyingwith the California Building Code and in accordance withSection 5005.1 and Sections 5005.2.1 through 5005.2.2.4.

5005.2.1 Open systems. Dispensing and use of hazardousmaterials in open containers or systems shall be in accor-dance with Sections 5005.2.1.1 through 5005.2.1.4.

5005.2.1.1 Ventilation. Where gases, liquids or solidshaving a hazard ranking of 3 or 4 in accordance withNFPA 704 are dispensed or used, mechanical exhaustventilation shall be provided to capture gases, fumes,mists or vapors at the point of generation.

Exception: Gases, liquids or solids that can be dem-onstrated not to create harmful gases, fumes, mistsor vapors.

5005.2.1.2 Explosion control. Explosion control shallbe provided in accordance with Section 5004.6 when anexplosive environment can occur because of the char-acteristics or nature of the hazardous materials dis-





pensed or used, or as a result of the dispensing or useprocess.

5005.2.1.3 Spill control for hazardous material liq-uids. Buildings, rooms or areas where hazardous mate-rial liquids are dispensed into vessels exceeding a 1.3-gallon (5 L) capacity or used in open systems exceed-ing a 5.3-gallon (20 L) capacity shall be provided withspill control in accordance with Section 5004.2.1.

5005.2.1.4 Secondary containment for hazardousmaterial liquids. Where required by Table 5005.2.1.4,buildings, rooms or areas where hazardous material liq-uids are dispensed or used in open systems shall be pro-vided with secondary containment in accordance withSection 5004.2.2 when the capacity of an individual

vessel or system or the capacity of multiple vessels orsystems exceeds the following:

1. Individual vessel or system: greater than 1.3 gal-lons (5 L).

2. Multiple vessels or systems: greater than 5.3 gal-lons (20 L).

5005.2.2 Closed systems. Use of hazardous materials inclosed containers or systems shall be in accordance withSections 5005.2.2.1 through 5005.2.2.4.

5005.2.2.1 Ventilation. Where closed systems aredesigned to be opened as part of normal operations,ventilation shall be provided in accordance with Sec-tion 5005.2.1.1.

TABLE 5005.2.1.4REQUIRED SECONDARY CONTAINMENT—HAZARDOUS MATERIAL LIQUIDS USE

MATERIAL INDOOR LIQUIDS USE OUTDOOR LIQUIDS USE

1. Physical-hazard materials

Combustible liquids

Class II See Chapter 57 See Chapter 57

Class IIIA See Chapter 57 See Chapter 57

Class IIIB See Chapter 57 See Chapter 57

Cryogenic fluids See Chapter 55 See Chapter 55

Explosives See Chapter 56 See Chapter 56

Flammable liquids

Class IA See Chapter 57 See Chapter 57

Class IB See Chapter 57 See Chapter 57

Class IC See Chapter 57 See Chapter 57

Flammable solids Not Applicable Not Applicable

Organic peroxides

Unclassified Detonable Required Required

Class I

Required RequiredClass II

Class III

Class IV

Class V Not Required Not Required

Oxidizers

Class 4

Required RequiredClass 3

Class 2

Class 1

Pyrophorics Required Required

Unstable (reactives)

Class 4

Required RequiredClass 3

Class 2

Class 1 Not Required Required

Water reactives

Class 3 Required Required

Class 2

Class 1 Not Required Required

2. Health-hazard materials

Corrosives

Required RequiredHighly toxics

Toxics





5005.2.2.2 Explosion control. Explosion control shallbe provided in accordance with Section 5004.6 wherean explosive environment exists because of the hazard-ous materials dispensed or used, or as a result of thedispensing or use process.

Exception: Where process vessels are designed tocontain fully the worst-case explosion anticipatedwithin the vessel under process conditions based onthe most likely failure.

5005.2.2.3 Spill control for hazardous material liq-uids. Buildings, rooms or areas where hazardous mate-rial liquids are used in individual vessels exceeding a55-gallon (208 L) capacity shall be provided with spillcontrol in accordance with Section 5004.2.1.

5005.2.2.4 Secondary containment for hazardousmaterial liquids. Where required by Table 5005.2.1.4,buildings, rooms or areas where hazardous material liq-uids are used in vessels or systems shall be providedwith secondary containment in accordance with Section5004.2.2 when the capacity of an individual vessel orsystem or the capacity of multiple vessels or systemsexceeds the following:

1. Individual vessel or system: greater than 55 gal-lons (208 L).

2. Multiple vessels or systems: greater than 1,000gallons (3785 L).

5005.3 Outdoor dispensing and use. Dispensing and use ofhazardous materials outdoors shall be in accordance withSections 5005.3.1 through 5005.3.9.

5005.3.1 Quantities exceeding the maximum allowablequantity per control area. Outdoor dispensing or use ofhazardous materials, in either closed or open containers orsystems, in amounts exceeding the maximum allowablequantity per control area indicated in Tables 5003.1.1(3)and 5003.1.1(4) shall be in accordance with Sections5001, 5003, 5005.1 and 5005.3.

5005.3.2 Quantities not exceeding the maximum allow-able quantity per control area. Outdoor dispensing oruse of hazardous materials, in either closed or open con-tainers or systems, in amounts not exceeding the maxi-mum allowable quantity per control area indicated inTables 5003.1.1(3) and 5003.1.1(4) shall be in accordancewith Sections 5001 and 5003.

5005.3.3 Location. Outdoor dispensing and use areas forhazardous materials shall be located as required for out-door storage in accordance with Section 5004.

5005.3.4 Spill control for hazardous material liquids inopen systems. Outdoor areas where hazardous materialliquids are dispensed in vessels exceeding a 1.3-gallon (5L) capacity or used in open systems exceeding a 5.3-gal-lon (20 L) capacity shall be provided with spill control inaccordance with Section 5004.2.1.

5005.3.5 Secondary containment for hazardous mate-rial liquids in open systems. Where required by Table5005.2.1.4, outdoor areas where hazardous material liq-uids are dispensed or used in open systems shall be pro-

vided with secondary containment in accordance withSection 5004.2.2 when the capacity of an individual vesselor system or the capacity of multiple vessels or systemsexceeds the following:

1. Individual vessel or system: greater than 1.3 gallons(5 L).

2. Multiple vessels or systems: greater than 5.3 gallons(20 L).

5005.3.6 Spill control for hazardous material liquids inclosed systems. Outdoor areas where hazardous materialliquids are used in closed systems exceeding 55 gallons(208 L) shall be provided with spill control in accordancewith Section 5004.2.1.

5005.3.7 Secondary containment for hazardous mate-rial liquids in closed systems. Where required by Table5005.2.1.4, outdoor areas where hazardous material liq-uids are dispensed or used in closed systems shall be pro-vided with secondary containment in accordance withSection 5004.2.2 when the capacity of an individual vesselor system or the capacity of multiple vessels or systemsexceeds the following:

1. Individual vessel or system: greater than 55 gallons(208 L).

2. Multiple vessels or systems: greater than 1,000 gal-lons (3785 L).

5005.3.8 Clearance from combustibles. The area sur-rounding an outdoor dispensing or use area shall be keptclear of combustible materials and vegetation for a mini-mum distance of 30 feet (9144 mm).

5005.3.9 Weather protection. Where overhead noncom-bustible construction is provided for sheltering outdoorhazardous material use areas, such use shall not be consid-ered indoor use when the area is constructed in accordancewith the requirements for weather protection as required inthe California Building Code.

Exception: Use of explosive materials shall be consid-ered as indoor use.

5005.4 Handling. Handling of hazardous materials shall bein accordance with Sections 5005.4.1 through 5005.4.4.

5005.4.1 Quantities exceeding the maximum allowablequantity per control area. Handling of hazardous materi-als in indoor and outdoor locations in amounts exceedingthe maximum allowable quantity per control area indi-cated in Tables 5003.1.1(1) through 5003.1.1(4) shall be inaccordance with Sections 5001, 5003, 5005.1 and 5005.4.

5005.4.2 Quantities not exceeding the maximum allow-able quantity per control area. Handling of hazardousmaterials in indoor locations in amounts not exceeding themaximum allowable quantity per control area indicated inTables 5003.1.1(1) and 5003.1.1(2) shall be in accordancewith Sections 5001, 5003 and 5005.1. Handling of hazard-ous materials in outdoor locations in amounts not exceed-ing the maximum allowable quantity per control areaindicated in Tables 5003.1.1(3) and 5003.1.1(4) shall be inaccordance with Sections 5001 and 5003.





5005.4.3 Location. Outdoor handling areas for hazardousmaterials shall be located as required for outdoor storagein accordance with Section 5004.

5005.4.4 Dispensing, use and handling. Where hazard-ous materials having a hazard ranking of 3 or 4 in accor-dance with NFPA 704 are transported through corridors,interior exit stairways or ramps or exit passageways, thereshall be an emergency telephone system, a local manualalarm station or an approved alarm-initiating device at notmore than 150-foot (45 720 mm) intervals and at each exitand exit access doorway throughout the transport route.The signal shall be relayed to an approved central, proprie-tary or remote station service or constantly attended on-site location and shall also initiate a local audible alarm.



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