We urge the development by biologists and safety personnel of a 
concensus document of safe, healthful, environmentally acceptable and 
scientifically valid practices for research personnel handling all haz- 
ardous biological materials. One section of the document could deal 
with the potential hazards related to the use of recombinant DNA tech- 
nology, including the use of toxin or drug-resistance genes and delib- 
erate release to the environment of potentially hazardous altered organ- 
isms. 
In summairy, we encourage NIH to continue to urge all laboratories 
to maintain a program of safety, health, and environmental protection. 
We support the development of a concensus practice guide for the use 
by persons handling biological materials, including those using recom- 
binant DNA techniques. Monsanto will continue to work towards safe 
laboratory practices in its own and other laboratories. 
Sincerely, 
Monte C. Throdahl 
Senior Vice President, 
Environmental Policy Staff 
MCT/lh 
