qua>
a. Determined that the Project Sunshine data on
the mean residence time and the rate of deposition
of radiostrontium activity from the stratosphere
which permit the inference that the total fission
yield of all the megaton devices tested to date is
at least twenty-four megatons may be published
without undue risk to the common defense and
security; and
b. Noted that the Military Liaison Committee,
the Joint Committee on Atomic Energy and the General
Advisory Committee will be advised of this action by
letter, such as that attached as an Appendix to AEC 278/10.
5.
AEC 27/117 - Meeting of U.S., U.K. and Canadian
Declassification Representatives
N.r, Marshall commented on the proposed terms of reference
for U.S. delegates to the Eighth International Declassification
Conference and on the proposed declassification guide which the
conferees would discuss. He said that after the Conference,
recommendations for declassification and reclassification based
on discussion of the proposed guide would be submitted. Mr. Libby
pointed out that the guide which the conferees would consider
provided for, in general:
a. the declassification of information on power
reactors except for technology relating to military
propulsion and production reactors;
b. the declassification of absolute methods of
isotope separation; such as, electromagnetic and
liquid thermal diffusion;
c, the declassification of heavy water production
technology;
~ 234-