ATTACHMENT 1

                                        SM-2077-52
                                        3 September 1952



MEMORANDUM FOR:     Chief of Staff, U.S. Army
                    Chief of Naval Operations
                    Chief Staff, U.S. Air Force

          Subject:  Security Measures on Chemical Warfare and
                    Biological Warfare

     1.   The Joint of Chiefs of Staff have considered the
recommendation by the Secretary of the Air Force that action be
taken to "tighten security measures on Chemical Warfare (CW) and
Biological Warfare (BW) but not to extent of over-classification
with the resultant damage to our accelerated program".  In
connection with CW, the Joint Chiefs of Staff note that only part
of the field of CW pertaining to nerve gases is of such
sensitivity as to require a special guide for its security
classification and therefore the term CW as used herein applies
only to the nerve gases.  The Joint Chiefs of Staff note that
information concerning BW and CW is being more widely
disseminated than is necessary or is desirable from a security
point of view.  The Joint Chiefs of Staff, after examining the
current over-all policy on security classification of military
information and the security classification policies concerning
BW and CW, agree that the policies furnish adequate guidance for
safeguarding these areas of information and consider that within
the framework of the existing policies action can be taken to
curtail unnecessary dissemination of BW and CW information. 
Accordingly, the Joint Chiefs of Staff are of the opinion that,
in the interest of increased security, responsible agencies
should re-examine their procedures for implementing the current
policies and keep under continuing review the following:

          a.   Measures to insure adequate classification under
     the presently effective over-all security classification
     policy and the specific security policies governing
     classification of matter concerning BW and CW.

          b.   Measures to insure that classified BW and CE
     documents and information are made available to authorized 

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     personnel only on a "need-to-know" basis with determination
     in each case reserved to the highest practicable level of
     command in each Service concerned.

     2.   The Joint Chiefs of Staff further consider that
responsible agencies should:

          a.   Impose stringent controls over visitors to
     activities involved in the BW and CW programs.  Visits by
     individuals or groups for indoctrination purposes should not
     normally be authorized.  Rather, consideration should be
     given to devising a means to conduct essential
     indoctrination programs at places other than where BW or CW
     research and development work is begin performed and
     possibly by personnel not directly concerned in this work. 
     Conversely, this should not be construed to exclude
     personnel who are actually engaged in the furtherance of the
     BW and CW programs.

          b.   Maintain under continual surveillance positive
     measures to insure thorough security indoctrination of all
     personnel, and in particular, civilian scientists assigned
     to the BW or CW programs.  And further insure that all such
     personnel are debriefed prior to assignment to other duties
     outside these fields or upon termination of employment in
     connection therewith.

          c.   Impose a time-lag on publication, sufficient to
     provide security for current research, when reviewing BW and
     CW material prepared for unclassified publication by
     personnel connected with the BW or CW programs.

          d.   Insure, insofar as practicable, that all published
     articles stemming from the BW or CW research and development
     programs are disassociated from anything which might connect
     them with U.S. military endeavor.

                                   For the Joint Chiefs of Staff:


                                        W. G. LALOR,
                                   Rear Admiral, U.S. Navy (Ret.)
                                        Secretary


Copies to:     Asst C/S, G-3
               Secy to CNO (JCS)
               Director/Plans, AF
               Commandant Marine Corps
               Director, J/S

(Further implementation of
JCD 893/18)