Which agency is responsible for enforcing regulations related to environmental protection?

The Environmental Protection Agency, commonly known as the EPA, is the primary agency tasked with enforcing regulations related to environmental protection in the United States. Established in response to growing environmental concerns, the EPA administers and enforces federal laws aimed at protecting the environment and public health, including regulations on air and water quality, hazardous waste, and chemical safety.

The agency conducts research, monitors environmental conditions, and implements laws passed by Congress, such as the Clean Air Act and the Clean Water Act. Its role is vital in ensuring compliance with environmental standards and taking action against violations. The EPA also collaborates with state and local governments to facilitate a comprehensive approach to environmental protection.

In contrast, while the other agencies mentioned have specific environmental roles, they do not have the overarching mandate for enforcing nationwide environmental regulations. NASA focuses on aeronautics and space research, the Department of Energy deals primarily with energy production and management, and NOAA is concerned with weather, climate, and marine resources rather than enforcing environmental protection regulations broadly.