Federal Legislation The Humane Society of the United States is committed to achieving progress for animals through federal legislation. Our U.S. government is responsible for all interstate commerce and import or export of animals, as well as for enforcing existing laws for animal protection [PDF]. Legislation in Congress addresses a wide variety of concerns, including companion animals, wildlife, farm animals, animals in research, and animals used for entertainment. Animals in Research  more Companion Animals  more Cruelty Issues  more Farm Animals  more Marine Mammals  more Wildlife  more   Search for a Federal or State Bill.