7 U.S.C. § 2138 : US Code - Section 2138: Purchase of dogs or cats by United States Government facilities prohibited except from authorized operators of auction sales and licensed dealers or exhibitors

Search 7 U.S.C. § 2138 : US Code - Section 2138: Purchase of dogs or cats by United States Government facilities prohibited except from authorized operators of auction sales and licensed dealers or exhibitors

No department, agency, or instrumentality of the United States
which uses animals for research or experimentation or exhibition
shall purchase or otherwise acquire any dog or cat for such
purposes from any person except an operator of an auction sale
subject to section 2142 of this title or a person holding a valid
license as a dealer or exhibitor issued by the Secretary pursuant
to this chapter unless such person is exempted from obtaining such
license under section 2133 of this title.