Concerning the communication of data, as contemplated in the United States Atomic Energy Act of 1954 (hereinafter referred to as "the Act"), for the purposes of defence planning, the training of personnel in the employment of and defence against atomic weapons, and the evaluation of the capabilities of potential enemies in the employment of atomic weapons.

It being recognized that the exchange of such data between the United States and Canada is in the common defence interests of the two countries and can be undertaken without threat to the security and best interests of either.

Now therefore the United States and Canada mutually under take and agree that:

1. Subject to the terms and conditions hereof the United States will co-operate with and communicate to Canada, through channels of communication established or recognized by this agreement, Restricted Data as authorized in subsection (b) of section 144 of the Act, and data declassified or removed from the Restricted Data category pursuant to section 142 of the Act.

1st USA change is new clause similar to Clause 1 but providing
for flow of data in opposite direction.

C[anadian] J[oint] S[taff] W[ashington] 1943

2nd USA change is added clause stating that final decision on transfer
of US Restricted Data rests with US.

CJSW 1943

2. The Restricted Data referred to in paragraph 1 above shall be such as is necessary to the development of defence plans, the training of personnel in the employment of and defence against atomic weapons, and the evaluation of the capabilities of potential enemies in the employment of atomic weapons, to the extent permitted by the Act.

3. Without limiting the generality of paragraphs 1 and 2, the communication of Restricted Data and other data under the terms of this agreement shall include, to the extent permitted by the Act, the maximum possible cooperation in tests, trials, exercises, training programs, staff and operational research studies, medical and intelligence activities.

4. Canada undertakes and guarantees

(a) that the security safeguards and standards as set out herein will be maintained;

3rd USA change requires Canada to reaffirm that established
security agreements will be maintained.
CJSW 1943

(b) that any Restricted Data communicated pursuant to this agreement will not be communicated to unauthorized persons or beyond the jurisdiction of Canada except as specified herein.

Also some rewording of 4(b) to ensure that information intended only
for Canada will not be released to any agency under UK jurisdiction.

CJSW 1943

5. Nothing herein shall be interpreted or operate as a bar or restriction to consultation and co-operation by the United States and Canada with the United Kingdom in all fields of defence, but Canada agrees that it will communicate Restricted Data to persons within the jurisdiction of the United Kingdom only as authorized by the United States.

This paragraph is included on the understanding that
the U.S. desires such a clause.

6. Data communicated under the terms of this agreement will be transmitted through mutually agreed channels of communication.

7. Security safeguards and standards mutually agreed by the United States and Canada will be maintained.

8. This agreement shall continue in force as long as Canada is participating with the United States in a regional defence arrangement.

9. This agreement, being primarily concerned with matters set out in subsection (b) of section 144 and section 142 of the Act shall not operate as a bar to the entry into further agreements for co-operation under the Act.

10. Words and terms used in this agreement shall have the same meanings as in the Act.

THIS DRAFT HAS NOW ACQUIRED AN "ANNEX" WHICH LISTS IN GENERAL TERMS
THE SUBJECTS COVERED BY THIS AGREEMENT, e.g.

(a) Characteristics, size, shape, weight, yield, etc, of "A" weapons.

(b) Configuration of aircraft to carry "A" weapons.

(c) Structural analysis and blast effects.¹⁷⁶

CJSW 1943 etc.