A. Encouragement of cooperative studies. The agencies issuing these guidelines encourage employers, labor organizations, and employment agencies to cooperate in research, development, search for lawful alternatives, and validity studies in order to achieve procedures which are consistent with these guidelines.

B. Standards for use of cooperative studies. If validity evidence from a cooperative study satisfies the requirements of section 14 below, evidence of validity specific to each user will not be required unless there are variables in the user's situation which are likely to affect validity significantly.