UNIVERSITY OF CALIFORNIA. LOS ANGELES 
UCLA 
•IMCLII • 0«VM • IBVINt • LOBANCILCS • BIVIMIOI • IAN OI ECU • >AS rBAHCltCU 
SANTA BARIAIIA • SANTA CRUZ 
DEFARTMENT OF PATHOLOGY 
I'CLA SCHOOL or HEOtCINE 
CENTER FOR THE HEALTH SOENCES 
LOS ANGELES. CAUFORNIA R00S4 
January 25, 1982 
Wllliaa J. Carcland, Jr., Ph.D. 
DlracCor, Offlca of Racoablnanc 
DNA Acclvltlaa 
Building 31, Ra 4A52 
National InatlCutaa of HaalCh 
Batheada, Maryland 20205 
Daar Dr. Carcland: 
I am acrongly In favor of cha propoaad ravlalon of cha NIH Culdallnaa 
for Raaaarch Involving Racoablnanc DNA Molaculaa racnawindad by Cha 
Racoablnanc DNA Advlaory CoaalCCaa and publlahad In Cha Fadaral RaglaCar, 
Dacaabar 4, 1981. In ay opinion, cha vaac aajorlcy of Cha axparlaanCa 
Involving racood>lnanc DNA hava baan ahovn Co ba aafa. In addition, I 
ballava chat RK>ac InaclCuClona hava ahovn Chat Chay are abla to aonlCor 
laboracorlaa and Crain laboratory workara Co aalncaln raaaonabla bio- 
logical aafaty. For Chaaa raaaona, I ballava chat It would now ba 
approprlaca Co naka Cha Culdallnaa a voluntary coda of atandard pracClca. 
Slncaraly youra, 
David D. PorCar, M.D. 
Profaaaor of Pathology 
Chairman, InatlCuClonal Bloaafacy Comailccaa 
DDP: ahh 
(693J 
