[Code of Federal Regulations]
[Title 40, Volume 20]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR163.8]

[Page 164]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 163--CERTIFICATION OF USEFULNESS OF PESTICIDE CHEMICALS--Table of Contents
 
Sec. 163.8  Basis for determination of usefulness.

    Usefulness of a pesticide chemical for the purposes intended will be 
determined upon the basis of its practical pesticidal, or biological, 
effectiveness. Pesticidal effectiveness may be established in terms of 
percentage reduction or control of pests or, when appropriate, increase 
in yield or quality of crop following application of the specified 
pesticide under the conditions prescribed, compared with the results 
from adequate controls. Consideration may also be given to other 
economic gain or practical benefit, including: Economy or ease of 
production, harvest, or storage of crop; flexibility as regards the time 
of planting or harvest, even at the possible sacrifice of yield; and 
general benefit to livestock, plants, or human welfare.