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Meeting 1246 on November 14, 1956, the Commission had approved
the radiological safety criteria for gamma radiation set forth
in paragraph 3 of AEC 141/33 with the understanding that
Mr. Libby might establish the ten year limit at a lower level
than the 10 roentgens referred to in paragraph 3b of AEC 141/33.
Mr.
Libby then stated that the ten year limit for radiation
exposure should be 10 roentgens.
Mr. Murray suggested that sub-paragraph 3a of AEC 141/33,
which states as the exposure limitation
W
".
.
. 3.9 roentgens
for any one year;" be revised to read ", . . 3.9 roentgens for
the anticipated test series."
The Commissioners agreed to this
revision of their previous decision on AEC 141/33.
The Commissioners also agreed to delete from the press
release the reference to limiting fallout from Operation PILGRIM
so that exposures will not exceed 3.9 roentgens.
The staff
was requested to prepare a draft response to any inquiries
received concerning the consistency of AEC exposure criteria
for Operation PILGRIM with the exposure criteria recommended
by the National Academy of Sciences for the total population
of the U.S.
After further discussion, the Commission:
a. Approved, as revised, a letter to the Presiden’
as set forth in AEC 944/4, regarding Overation PILGRIM;
b. Approved, as revised, a press release as contained
in AEC 944/4 regarding Operation PILGRIM;
¢,. Noted that draft letters to the JCAE and the
Nevada Congressmen similar to those in Appendices
"Tl ana "J", respectively, of AEC 944, as revised,
will be prepared.
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