This joint resolution would block a Pipeline and Hazardous Materials Safety Administration rule that would change references to the "Gulf of Mexico" to the "Gulf of America" in pipeline safety regulations. The rule, published in the Federal Register on May 20, 2025, is an editorial update that would rename the body of water in official pipeline safety documentation. Under the Congressional Review Act (a process that allows Congress to disapprove federal agency rules), this resolution would prevent the rule from taking effect if passed by both chambers and signed into law. The measure would affect pipeline operators and safety standards in the Gulf region but has no direct funding or implementation timeline beyond blocking the naming change itself.