U.S. Environmental Protection Agency (EPA)

The United States Environmental Protection Agency (EPA) is an independent federal agency responsible for protecting human health and the environment. It develops and enforces environmental regulations under laws passed by Congress, including the Clean Air Act, Clean Water Act, and Resource Conservation and Recovery Act. The EPA oversees emissions standards, climate policy implementation, air and water quality regulation, hazardous waste management, and environmental compliance across the United States. The agency plays a central role in U.S. climate mitigation efforts, greenhouse gas regulation, and environmental justice initiatives.