The Line 5 Act prohibits the President and any officials acting under his authority from violating the 1977 U.S.-Canada Transit Pipelines Agreement. This legislation is primarily a protective measure that reinforces the existing international agreement governing transit pipelines between the two countries, which was originally signed in Washington in January 1977. The bill affects pipeline operations and U.S.-Canada relations, with implications for energy infrastructure and trade between the nations. No specific funding or implementation timeline is mentioned in the legislation itself. The bill was introduced by Michigan representatives in June 2025 and referred to the House Committee on Foreign Affairs.