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N A T O — C O N F I D E N T I A LlCONFIDENTIAL - N\TO COPY NO. __________

NORTH ATLANTIC MILITARY COMMITTEEl*hi

COMITE MILITAIRE DE L'ATLANTIQUE NORD Standing Group Groupe Permanent

SGM-627-56 5 September 1956

MEMORANDUM FOR THE GERMAN MILITARY REPRESENTATIVESUBJECT: Allied Communications Publications (ACPs)References : a. SGM-397-56

t.. SGM-346-56, as amended

1. Listed at enclosure are Allied Communications Pub­lications and related Standing Group Memoranda pertaining to publications which either have been or are in various stages of being adopted by NATO. All documents listed at enclosure except those marked with an asterisk (*) are being furnished separately by the Standing Group.

2. To assist the German authorities in assimilating this material, the following general summary of Allied Communi­cations publications is furnished for information and guidance:

a. SGM-519-50 '’Communications Publications Required for Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty'* contains information on the arrangements for provisioning of Allied Communications Publications. SGM-|?19-50 is novr incomplete and, in part, inaccurate. Accordingly, SGM-519-50 should be considered with reference a, and where conflict exists the information contained In reference â. should be considered as predomina­ting .

b» ACP 198(C) establishes a standard format forAllied Communications Publications, Including rules forassignment of short titles, preparation, assembly, and

DISTRIBUTION; A1-6,8,10,11,13,16 SI,2,3 F4 H2CONFIDENTIAL -.NATO - 1 -SGM-627-56

DOCUMENT DESTRUCTION MEMO. # ^ f f ^ 7 < ^ 4 s l A T O — C O N F I D E N T I A Luimuuiiurt MLMü. # jijO LONGER EFFECTIVE

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page numbering, etc. It is suggested that ACP 198(C) be reviewed for content prior to any study of all other series of publications.

c. Each publication contains a Foreword which is ex­plained in Article 205 of A.CP 198(C), and Chapter 1 of each book usually consists of "General Instructions", "General", or "General Considerations", as appropriate to the series concerned. The list of Standing Group Memor­anda at enclosure includes memoranda Iss-ued at the time the related publication was approved for adoption by the Mili­tary Representatives Committee and, in certain respects, the content of the memoranda has been overtaken by sub­sequent revisions to the publications as adopted. Where conflict appears between the Memoranda and the Foreword or General Instructions of current publications, the latter should be considered as predominating.

3. The following specific comments on all series of pub­lications are furnished for information and guidance:

a. A.ddress Group Publications are designed to provide a common system of address groups to facilitatethe transmission of messages between NATO military elements. This series of publications consists of the following separate books :AC? 101 - Air Force Uddress Groups ACP 102 - 4rmy Address Groups ACP 103 - Naval Address Groups&CP 104 - Allied, Joint and Geographical Address Groups ACP 105 - Master Index of Four letter Call Signs and

Address Groupsb. ACP 112 "Task Organization Call Sign Book",

designed to facilitate communications with and between the Task Forces, Elements, Groups and Units comprising the NATO Naval Task Organization, has recently been

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adopted. Copies of related Standing Group memoranda have previously been furnished to German authorities.

c. ACP 113 ,rCall Sign Book for Ships", containing a list of International Call Signs for Ships, is a part of the common system of Call Signs necessary to permit communi­cations between the krmed Services of Member NATO Nations.

d, ACP 114 “Call Sign Book for Fixed and Land Radio Stations", containing a list of International Call Signs for Fixed and Land Radio Stations, is a part of the dommon system of Call Signs necessary to permit communications between the Armed Services of Member N\TO Nations.

ACP U S "Visual Call Sign Book", containing visual call signs, is designed to permit the establishment of visual communications with allied ships. National list­ings of Visual Call Signs ,of all European NATO Nations will be contained In a European Supplement to ACP 118 and German listings for inclusion In this document should be submitted to the Chairman, European Naval Communications Agency, for necessary action. Visual Call Signs of the United States and Canada are contained in ACP 113 series as indicated in Article 202 of ACP 118(D).

£.. ACP 121, "Communications Instructions, General", contains information regarding assignments and use of frequencies; means of communications; message preparation; call signs, routing Indicators and address groups and method of determining code speeds, message precedence, etc. ACP 121 is primarily for use by originators and communi­cations officers. This publication should be reviewed for content with ACP 122 immediately after ACP 198(C).

g.. ACP. 122, "Communications Instructions, Security", contains Instructions regarding censorship, handling of classified material, cryptographic operation, transmission security, traffic analysis and deception.

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ÖL. ACP 124, "Communications Instructions, Radio Telegraph procedure", contains specific instructions re­garding operating rules and procedures applicable to preparing and sending messages on radiotelegraph circuits.

i. ACP 12?, "Communications Instructions, Radio Telephone Procedure", contains instructions regarding message format, procedure and operating rules for the sending of messages on radio telephone circuits.

ACP 126, "Communications Instructions - Teletype­writer (Teleprinter) Procedure", contains instructions regarding message format, procedure and operating rules for the sending of messages on manual teletypewriter circuits.

1&. ACP 127, "Communications Instructions - Tape Relay Procedure", contains instructions regarding message format, procedure and operating rules for the sending of messages on tape relay teletypewriter circuits.

1. fiCP 129, "Communications Instructions - Visual Signalling Procedure", contains instructions regarding message format, procedure and operating rules for the send~ ing of messages by visual means.

m. ACP 130, "Communications Instructions, Direction Finding Procedure", contains the detailed radiotelegraph and telephone procedure for obtaining radio direction finder bearings, course and position reports.

n. ACP 131, "Communications Instructions, Operating Signals", contains signals from the "Q" Code prescribed for international use and from the "Z" Code which is designed to cover military communications requirements not ade­quately covered by the "Q" Code, together with instructions for their use.

Q.. ACP 134, "Telephone Switchboard Operating Procedure", contains general Instructions and detailed operatiiig procedure for monocord and multicord telephone switchboards. This pub­lication is being considered by Standing Group for adoption and copies are.furnished the German authorities for informa-only at this time.

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£. ACP 135.» "Communications Instructions, Distress and Rescue Procedures", contains general information per­taining to distress, alarms, calls, messages and the basic procedures pertaining thereto based on military, international and domestic requirements.

£. ACP 136, "Communications Instructions, Panel Signalling ", contains a system whereby ground personnel may communicate to a limited degree with aircraft by means of panels laid out on the ground, or by markings in the soil. This publication is being considered by Standing Group for adoption.

r_. ACP 147j "Call Sign Book for Merchant Vessels in Time of War", contains international and wartime call signs of allied merchant ships. ACP 147(B), now being formulated, will be made effective NATO-wide in due course after distri­bution has been completed.

s_. ACP 148, "Wartime Instructions for Merchant Ships Visual Signalling and Tactics", is a handbook for convoy and independent ship operation and a guide to convoy maneuvering and signalling procedure.

_t.- ACP 149, "Wartime Instructions for Merchant Ships Radio", contains instructions for the conduct of radio communications with and within merchant ships convoys.

£, ACP ISO, "Recognition and Identification Instruc­tions - General", contains a general description of the scope, objectives, application, limitation, means and methods of recognition and identification with instructions regarding their use.

va ACP 151, "Recognition and Identification Instruc­tions - Air Forces and Ground Forces", contains instructions

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regarding employment of visual and electronic means of recognition and identification of air and ground forces.

ÜL« ^CP 153, "Recognition and Identification Instruc­tions - Surface Forces", contains instructions regarding the employment of visual and electronic means of recogni­tion and identification of surface warships, merchant ships, between submarines and surface warships and between sub­marines and aircraft.

^CP 154, "Recognition and Identification Instruc­tions - Harbor Entrance Control”, contains instructions regarding the responsibility and procedure for identifying major warships, minor warships and merchant ships entering defended ports.

X» ACP 165, "Operationa Brevity Codes”, contains radiotelephone procedure, prowords and operational brevity codes for A.ir Warning, Air Defense, Anti-aircraft Coor­dination, Airborne Early Warning and Electronic Counter­measures. They have no security and are for purposes of abbreviation only.

ACP 166, ”Voice Procedure for Ground Controlled Approach", contains instructions on Ground Control Approach and standard voice phraseology for use in connection with Ground Control Approach procedure.

aa. ACP l67} "Glossary of Communications-Electronics Terms", contains a list of the more commonly used communi­cations -electronics terms employed in military communica­tions and definitions thereof.

bb. ACP 168, "Pyrotechnic Signals", contains a list of pyrotechnic signals in general use. This publication Is being considered by Standing Group for adoption.

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cc. ACP 175i "Allied Naval Signal Book”, contains maneuvering and other signals of a standard form likely to be used in naval operations.

dd. ACP 176-, "Allied Naval Communications Instructions", contains communications instructions especially applicable to NATO Navies when acting in cooperation.

ee. ACP 198, "Instructions for the Preparation of Allied Communications Publications (ACPs)", establishes a standard format for ACPs, including rules for assignment of short titles, preparation, assembly, and pagination.4. In general terms, all Allied Communications Publica­

tions are classified either as procedural publications or as call sign or address group publications. Procedural Publications usually require translation from English to the national language used by the non-English speaking forces allocated to NATO. On the other hand, call sign and address group publications usually can be implemented in the English text with a brief translation glossary appended by the national implementing authority.

5. The address group and call sign publications will require German sections prior to implementation by the German authorities. Information pertaining to the submission of data for inclusion in publications is contained in the Forewords of the various books and in the related memoranda listed at en­closure. Information on which to prepare German sections for certain address group and call sign publications will be required, as indicated:

■ACP 101 - Air Force Address GroupsACP 102 - Army Address GroupsACP 103 - Naval Address GroupACP 104 - Allied Joint and Geographical Address GroupsACP 113 - Call Sign Book For ShipsACP ll4 - Call Sign Book for Fixed and Land Radio Stations

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ACP l l 3 - Visual Call Sign Book (see para 2e, above) ACP 147 - Call Sign Book for Merchant Vessels In Time

6. The current Standing Group status of Allied Communica­tions Publications is shown at reference However, reference k. is being amended to indicate that none of the publications listed therein are now effective within the Armed Forces of the Federal Republic of Germany.

7* It is requested that the German authorities:a. Effect implementation of the procedural publica­

tions in an order best suited to the requirements of the German national forces.

b. Furnish information on which to enable Standing Group to prepare and publish German sections to the address group and call sign publications.

c. Establish firm requirements with Standing Group for bulk distribution of all series of publications in accordance with the guidance furnished herewith.

of War

FOR THE STANDING GROUP:

Deputy Secretary

C O N F I D E N T I A L - N A T O

S G M - 6 2 7 ~ 5 o

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INDEX OF DOCUMENTS RELATING TO ALLIED COMMUNICATIONS PUBLICATIONS

Documents marked with an asterisk (*) have previously been furnished to the German Authorities. Copies of all documents not marked with an asterisk will be furnished separately by the Standing Group Secretariat.

Address Group Publications:ACP 101(B) - ir Force Address Groups ACP 102(B) with Change No. 2 - Army Address Groups ACP 103(B) - Naval Address Groups ACP 104(4) with Change No. 6 - Allied Joint and

Geographical Address Groups ACP 105 with Change No. 1 - Master Index, Four Letter

Call Signs and Address Groups SG 33/19 (Final)SGM-364-53 - Address Groups Publications SGM-873-53 * Address Group Assignments SGM-1498-53 - Review of Requirements for ACP 105

Task Organization Call Sign Book - ACP 112ACP 112(A) - Task Organization Call Sign Book *SG 33/28 (Final) - Task Organization Call Sign Book -

ACP 112(A)*SGM-401“5’6 - Task Organization Call Sign Book - ACP 112(A) *SGM-520-% - Task Organization Designators

Call Sign Book for Ships - ACP 113♦ACP 113(H) with Change No. 2 - Call Sign Book For Ships 3G 33/8 (Final) - Call Sign Book for Fixed and Ship

Radio Stations - ACP 113(E)SGM-719-51 - Communications Publications Required for

Combined Use by the 4rmed Forces of the Signatories

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of the North Atlantic Treaty (Call Sign Book for Fixed and Ship Radio Stations - ACP 113(E)).

SGM-II32-51 ~ Call Sign Book for Fixed and Land Radio Stations - ACP 114(F)

Call Sign Book for Fixed and Land Radio Stations - ACP 114 SGM-II32-51 - Call Sign Book for Fixed and Land Radio

Stations - ACP 114(F) - (Note: ACP 113(E) was revised and split into two books, ACP 113(F) and ACP 114(F )).

*ACP 114(G) with Change No. 2 - Call Sign Book for Fixed and Land Radio Stations

*SGM-38-56 - Policy Statement on Call Signs to be used by Fixed Radio Stations.

Visual Call Sign Book - ACP II8

ACP 118(D) with Change No. 1 - Visual Call Sign Book SG 33/12 - Communications Publications Required for Combined Use by the Signatories of the North Atlantic Treaty (Visual Call Sign Book - ACP 118(C)).SGM-IO83-51 - : Communications Publications Required for

Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty (Visual Call Sign Book - ACP 118(C)),

SGM-672-55 - Visual Call Signs

Communications Instructions, General - ACP 121ACP 121(B) - Communications Instructions, General SG 33/22 (Final) - Communications Instructions, General

ACP 121(B)

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SGM-II70-53 - Communications Instructions - General,ACP 121(B)

Communications Instructions - Security, A.CP 122ACP 122(B) - Communications Instructions - General SG 33/20 (Final) - Communications Publications, Allied

Communications Instructions - Security, ACP 122(E) SGM-324-53 - Allied Communications Instructions -

Security, ACP 122(B)

Communications Instructions - Radiotelegraph Procedure, ACP 124A.CP 124(A) with Change No. 3 - Communications Instruc­

tions - Radiotelegraph Procedure SG 33/4 (Final) -■ Communications Publications Required

for Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty (Communications Instruc­tions, Radio Telegraph (W/T) Procedures (ACP 124(A)).

SGM-39--51 - Communications Publications Required for Combined USE by the Armed Forces of the Signatories of the North Atlantic Treaty (Communications Instruc­tions, Radio Telegraph (W/T) Procedures (ACP 124(A)).

*EMCCC/56SEC/38 - European Supplement to ACP 124(A.)

Communications Instructions - Radio Telephone Procedure,ACP 125

ACP 125(B) - Communications Instructions - Radio Telephone Procedure

SG 33/13 - Communications Instructions - Radio Tele­phone (R/T) Procedure - ACP 125(A)

SGM“1082“51 ~ Communications Instructions - Radio Telephone (R/T) Procedure, ACP 125(A),

*SGM-34-J?6 - Use of ROGER as Procedural Word

Communications Instructions - Teletypewriter (Teleprinter)Procedure, ACP 126

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ACP 126 with Change No. 1 - Communications Instructions- Teletypewriter (Teleprinter) Procedure

SG 33/10 (Final) - Communications Publications Required for Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty (Communications Instruc­tions - Teletypewriter (Teleprinter) Procedure - ACP 126),

SGM-792-51 ~ Communications Publications Required for Combine Use by the Armed Forces of the Signatories of the North Atlantic Treaty (Communications Instruc­tions - Teletypewriter (Teleprinter) Procedure - ACP 126).

Communications Instructions - Tape Relay Procedures - ACP 127 ACP 127(B) “ Communications Instructions - Tape

Relay Procedures *SG 33/30 - Communications Instructions - Tape Relay

Procedures (ACP 127(B)).

Communications Instructions - Visual Signalling - ACP 129 *ACP 129(A) - Communications Instructions - Visual

SignallingSG 33/17 (Final) - Communications Publications Required by

the Armed Forces of the Signatories to the North Atlantic Treaty (Visual Signalling Procedure, ACP 129)-

SGM-199-52 - Communications Publications Required by the Armed Forces of the Signatories of the North Atlantic Treaty (Visual Signalling Procedure (ACP 129))-

Direction Finding Procedure - ACP 130ACP 130(B) - Direction Finding Procedure SG 33/15 - Communications Publications Required by the

Armed Forces of the Signatories of the North Atlantic Treaty (Direction Finding Procedure (ACP 130(A)).

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SGM-236-52 - Communications Publications Required by the Armed Forces of the Signatories of the North Atlantic Treaty (Direction Finding Procedure (ACP 130(A)).

Communications Instructions - Operating Signals - ACP I3IACP 131 - Communications Instructions - Operating Signals

*SG 33/29 (Final) - Communications Instructions - Operating Signals (ACP 131)

*SGM-378-56 - Communications Instructions - Operating Signals

Telephone Switchboard Operating Procedure, ACP 134ACP 134(A) with Change No. 1 - Telephone Switchboard

Operating Procedure

Communications Instructions - Distress and Rescue ProcedureACP 135

ACP 135 with Change No. 1 - Communications Instructions- Distress and Rescue Procedure

SG 33/26 (Final) - Communications Instructions -Distress and Rescue Procedures (ACP 135)*

SGM-677-54 - Communications Instructions on Distress and Rescue Procedures

*NATOCOM 35 of 29 Mar 56

Call Sign Book for Merchant Vessels in Time of War ~ ACF 1^7 *SGM-774-55 - ACP 147 Series - Merchant Ship Call Signs *SGM-775-55 - Interim War Call Signs for Merchant Ships

Wartime Instructions for Merchant Ships (Visual Signalling andTactics) - ACP 148

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ACP 148 - Wartime Instructions for Merchant Ships (Visual Signalling and 'Tactics)

SG 33/6 (Final) - Communications Publications Required by the Armed Forces of the Signatories of the North Atlantic Treaty - Wartime Instructions for Merchant Ships (Visual Signalling and Tactics), ACP 148

SGM-38-51 - Communications Publications Required by the Armed Forces of the Signatories of the North Atlantic Treaty - Wartime Instructions for Merchant Ships (Visual Signalling and Tactics), ACP 148.

Wartime Instructions for Merchant Ships (Radio) - ACP 149ACP 149 - Wartime Instructions for Merchant Ships (Radio) *SG 33/27 (Final) - Wartime Instructions for Merchant

Ships (Radio) - (A.CP 149).*SGM-5l4-?6 - Wartime Instructions for Merchant Ships

(Radio) - (ACP 149).*SGM-547-% - NATO Supplement-1 to ACP l49

Recognition and Identification Instructions - General, ACP 150 ~ Air Forces and Ground Forces, ACP 151 - Surface Forces, ACP 153 “ Harbor Entrance Control, ^CP 154

ACP 150(A) with Change No. 1 - Recognition and Identi­fication Instructions - General

ACP 151(A) - Recognition and Identification Instructions- Mr Forces and Ground Forces

ACP 153(A) - Recognition and Identification Instructions- Surface Forces

.ACP 154(A) with Change No. 1 - Recognition and Identifi­cation Instructions - Harbor Entrance Control

SO 33/23 (Final) - Recognition and Identification Instructions and Key Lists

SGM-1283-53 - Recognition and Identification Instructions and Key Lists

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SGM-1485-53 - Recognition and Identification Instructions- Surface Forces, ACP 153(A)

Operational Brevity Codes - ACP 165ACP 165 with Change No. 4 - Operational Brevity Codes SG 33/14 - Communications Publications - Operational

Brevity Codes - (ACP 165)SGM-IO8I--51 - Communications Publications Required for

Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty - (Communications Publications - Operational Brevity Codes, ACP 165)-

Voice Procedure for Ground Control Approach, ACP 166ACP 166 - Voice Procedure for Ground Control Approach SG 33/18 (Final) - Communiestions Publications Required

for Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty (Voice Procedure for Ground Controlled \pproach, ACP 166).

SGM-1352 53 - Communications Publications Required for Combined Use by the !i.rmed Forces of the Signatories of the North Atlantic Treaty - Voice Procedure for Ground Controlled Approach, ÂCP I66.

SGM-38-54 - Downgrading of ACP I66

Glossary of Communications Electronics Terms, ACP 167ACP 167 - Glossary of Communications-Electronics Terms SG 33/24 (Final) - Glossary of Communications-Electron­

ics Terms (ACP I67)*SGM-223~54 - Glossary of Communications Electronics Terms

Allied Naval Signal Book, AC P 175ACP 175(A) - Allied Naval Signal Book

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SG 33/16 - Communications Publications Allied - Allied Naval Signal Book, ACP 175

SGM-235-52 - Allied Naval Signal Book, ACP 175

Allied Naval Communications Instructions, ACP 176ACP 176(A) - Allied Naval Communications Instructions SG 33/5 (Final) - Allied Naval Communications

Instructions (ACP 176 Interim)SGM-7-51 - Allied Naval Communications Instructions

(ACP 176 Interim)

Instructions for the Preparation of Allied Communications Pub­lications, ACP 198

ACP 198(C) - Instructions for the Preparation of Allied Communications Publications (ACPs)

SG 33/11 (Final) - Communications Publications Required For Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty - (Instructions for the Preparation of Communications Publications (ACPs),ACP 198(B).

SGM-793‘51 ~ Communications Publications Required For Combined Use by the Armed Forces of the Signatories to the North Atlantic Treaty - (Instructions for the Preparation of Communications Publications (ACPs),ACP 198(B).

MiscellaneousSGM-5I9-50 - Communications Publications Required for

Combined Use by the Armed Forces of the Signatories of the North Atlantic Treaty

*SG 33/21 (Final) - Policy for Issuing Certain Non­Cryptographic JANAPs and English Language ACPs to NATO Nations

*SGM-5l9 -56 - Policy for Issuing Certain NON-Cryptographic JANAPs and English Language ACPs to NATO Nations.

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SGM-133-51 - Communications (Signals) Publications for NATO Use (ACPs).

*NATOCOM 43 - Distribution and Implementation of Allied Cofnmnnir-at.ioris. J uhl i cations

SGM-1920-52 as amended - Procedure for Funding .And Distribution of J\N\Ps/ACPs to N4Ï0 Countries

’*3GM-346-56 - Status of Non~Cryptographic Allied Communi­cations Publications

*'N’iTOCCM 45. - Amends SGM-3 46-^6*SfiM~39?~56 - Procedures for Funding, Distribution,

Establishing Requirements, and Changing Requirements for Allied Communications Publications.

*3GM-229“55 - Rapid Promulgation of Urgent Communications Information and Instructions to N^TG by the Standing Group

+SGM-S01-54 - Maintenance of Radio Silence by NATO Forces at Sea

*SGM-365-55 - Visual Signalling with Merchant Ships

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