The Guide leaves to contemporary scientists and IACUCs the burden of determining what is duplicative and what is unnecessary duplication. The IACUC believes that for instructional purposes it is occasionally necessary, to perform repetitive procedures using animals as essential to the curriculum in biological and some health sciences. This is an example of necessary duplication. The Committee considers very carefully all requests to use animals in curriculum and endeavors to assure that no more animals than necessary are purchased and held for these exercises.
For scientific research the Committee relies upon the statements of the PI in the protocol, evidence of publication in Annual Reports to the Committee, and the general knowledge of colleagues about sub-disciplines. PI's should take every precaution and opportunity to learn about the progress of science in their respective discipline which use animals. PI's should see such efforts as fundamentally progressive and supportive.