On April 22, 1976, the US Congress passed an amendment to broaden the Animal Welfare Act (P.L. 94-279) so as to, among other things:
A.
regulate carriers, intermediate handlers and animal brokers, so as to require adherence to humane standards
B.
specify that all dogs—including dogs for hunting, security or breeding purposes—be protected
C.
require a veterinarian's certificate for animals in interstate transport
D.
require all federal agencies—including the Army, Air Force and National Institutes of Health—using laboratory animals to show they fully comply with the Act