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THE ROCKEFELLER UNIVERSITY 
Dr. William Gartleuid, Jr. , Director 
Office of Recombinant DNA Activities 
Rationed. Institutes of Health 
Bethesda, MD 20205 
Dear Dr. Gartland: 
I am writing in support of the proposal 
appecuring in the December 4, 1981 Federal Register to 
1) cease mandatory implementation of the Guidelines 
for experiments involving recombinant DNA, 2) simplify 
the Guidelines to the extent that most experiments now 
requiring P2 or P3 containment be recommended at PI, 
3) eliminate the prohibitions section (I-D) of the 
current Gviidelines. 
1230 YORK AVENUE • NEW YORK, NEW YORK 10021 
Januaiy 29, 1982 
Yefurs sincerely 
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