High Quality Content by WIKIPEDIA articles! The Animal Welfare Act (Laboratory Animal Welfare Act of 1966, P.L. 89-544) was signed into law by President Lyndon B. Johnson on August 24, 1966. It is the only Federal law in the United States that regulates the treatment of animals in research, exhibition, transport, and by dealers. Other laws, policies, and guidelines may include additional species coverage or specifications for animal care and use, but all refer to the Animal Welfare Act (otherwise known as “AWA”)as the minimally acceptable standard for animal treatment and care.