Anne Vidaver 
Attachment IV - Page 1 
Suggested PWG Guidelines Amendments 
Pt. 10: add: ...studies, including assessment of dissemination of microrgani sms 
or plants containing recombinant DNA. 
Pt. 11: ...mice. For microorganisms, include information on known plant host 
range, including non-economic plants. 
Pt. 12 e. add ...procedures and duration: frequency... 
...etc. In addition, indicate, if appropriate, how border plants 
and weed species will be monitored for any potential transfer of 
recombinant DNA. 
Ecological factors that would be likely to materially affect the 
success (or failure) of the introduced plant should be indicated 
(e.g. soil type, water, temperature). 
Pt. 6. add: Ecological factors that would be likely to materially affect the 
success (or failure) of introduced microorganisms should be 
indicated (e.g. soil type, water, wind, temperature). 
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