The main purpose of this legislation, known as the "Maintaining Cooperative Permitting Act of 2025," is to ensure that certain permit approvals made by the Environmental Protection Agency (EPA) are legally binding and cannot be easily revoked. This act aims to provide stability and certainty for state-level permit programs that manage the discharge of dredged or fill materials into U.S. waters. Key provisions of the act include a prohibition on the EPA's ability to withdraw approval of specific state permit programs without explicit authorization from Congress.