Donald Fredrickson, M.D. 
Page 3 
workers involved with recombinant DNA and the absence 
of significant practical experience in industrial use. 
QSHA feels that the above mentioned steps by addressing 
the potential and real adverse health effects of recom- 
binant DNA would help provide an important basis for 
future regulatory action. 
We look forward to waricing with you and the Recombinant 
DNA Advisory Committee on this important public health 
concern. 
Sincerely, 
Eula Bingham 
Assistant Secretary 
Occupational Safety and Health 
cc: Dr. David K. Parkinson 
Dr. David Rail 
Dr. Anthony Robbins 
[ 344 ] 
