This joint resolution would reject a rule issued by the U.S. Fish and Wildlife Service in April 2024 that governs how endangered and threatened species are listed and how their critical habitats are designated under the Endangered Species Act. If passed, the rule would be invalidated and have no legal effect. The resolution was introduced by a group of Republican senators and represents a Congressional Review Act disapproval measure, which allows Congress to overturn federal agency regulations. The affected rule changed the process and criteria for protecting wildlife species and their habitats, and invalidating it would revert the agency to its previous procedures. No specific funding or implementation timeline is mentioned in the resolution, as its sole purpose is to block the Fish and Wildlife Service rule from taking effect.