The Environmental Protection Agency (EPA) is a United States government agency responsible for protecting human health and the environment. Established in 1970, the EPA enforces regulations based on laws passed by Congress, focusing on air and water quality, hazardous waste management, and chemical safety. The agency conducts research, monitors environmental conditions, and provides education to the public. It also works with state and local governments to implement environmental policies and ensure compliance with federal standards, aiming to create a cleaner and healthier environment for all citizens.