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USCIB: 4.2/32 

17 December 1954 

MEMORANDUM FOR THE MEMBERS OF USCIBEC: 

Subject: Revision of USCIB Directive ~o. 6. 

Reference: USCIB 13.4/7 dated l Dec. 1954. 

1. The enclosure constitutes a unanimously-agreed reconunendation 

of the Security Committee for revision of USCIB Directive No. 6 to 

include policy with respect to manufacture of codelmrd stamps and 

printing of paper bearing a COMINT codelvord. 

2. It is requested tha.t the Members execute the attached vote 

sheet and return it to this office by the close of bu~iness 30 

December 1954. 

Enclosure 

a/s 

USCIB: 4.2/32 

TOP SECRET 

Qeclassified and approved for release by NSA on 03-11-2014 pursuant to E. 0. 1352B 

24 
USOIB DIREGrIVE ~U.1BER 6 (OIBD # 6) 

(APPROVED BY USCIB ON 11 Mar 49 ) 

(Revised by US CIB on ) 

INSTRUGrIONS FOR THE PROTE GrION OF 

OOMINT OODEWORDS 

1. Regulations for the dissemination, handling, and safeguarding 

of OOMINT will: 

a. Refer to the OOMI1'.1T codewords only generically, and will 

not list specific codewords. These regulations will be so draf'ted that 

they will not themselves require designation by a COMINT codeword, and 

will thus avoid such designation. 

b. Clearly provide for the continuous safeguarding and 

security of superseded CDMINT codewords, and material covered by them, 

as well as of current ones. 

2. Knowledge of specific current and non-current COMINT codewords will be disseminated by each member organization in accordance 

with the basic security regulations and to the extent necessary to 

insure compliance with these regulations, and in a manner appropriate 

to that organization's administrative arrangements and procedures. 

3. When used as such, codewords for Category III COMINT (and 

sub-categories thereof) are classified TOP SECRET. These codewords 

a.~d their implications shall not be :made known to non-indoctrinated 

persons, nor shall these codewords be used in their codeword sense 

in the presence of non-indoctrinated persons. Paper stocks and 

rubber sta.rqps bearing such codewords must be treated accordingly. 

TOP SECRET 
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4. When used as such, codewords for Category II COMINT (and 

sub-categories thereof) a.re classified SECRET. These codewords and 

their 1mplica~ions shall not be made ~nown to μon-indoctrinated 

persons, nor shall these codewords be used in their codeword sense 

in the presence of non-indoctrinated persons. Pap~r stocks and 

rubber stamps bearing such codewords must be treated accordingly. 

5. Codeword stamps for categories' and sub-categories of C01.f.C11T 

may be manufactured integral with stamps bearing appropriate classif ication when such work can be ~ccomplished by ind,.octrinated 

personnel. Similarly, paper stocks bearing a codeword in association with a classification must be printed by indoctrinated 

personnel. 

6. Codewords shall normally be replaced every two years unless 

positive security advantages will be obtained by an earlier change. 

In such cases, a new period of two years shall be in effect from the 

date of the change. 

7. Prior to the effective date of a change in codewords, extreme 

care should be exercised to insure that the new word is made known 

only to the minimum number of personnel consistent with operational 

necessity. In no case should the word be divulged to personnel who 

are expected to be debriefed prior to the effective date of the change. 

- 2 -

Approved by US CID on __ 1_1_Mar __ l+_9 ____ _ 

~ . - Revisea 'by tiscm on ----------- CIBD II _§... (Revised) 

TOP S£CRE'f