To provide that the final rule of the United States Fish and Wildlife Service titled "Endangered and Threatened Wildlife and Plants; Endangered Species Status With Critical Habitat for Guadalupe Fatmucket, Texas Fatmucket, Guadalupe Orb, Texas Pimpleback, Balcones Spike, and False Spike, and Threatened Species Status With Section 4(d) Rule and Critical Habitat for Texas Fawnsfoot" shall have no force or effect.

HR 840 would eliminate a federal rule protecting six specific mussel species (Guadalupe Fatmucket, Texas Fatmucket, Guadalupe Orb, Texas Pimpleback, Balcones Spike, and False Spike) as endangered, and one species (Texas Fawnsfoot) as threatened, along with their designated critical habitats. The bill directly affects these mussel species by removing their legal protections under the Endangered Species Act. It achieves this by declaring the U.S. Fish and Wildlife Service's final rule (published June 4, 2024) "shall have no force or effect." This is a procedural bill that would reverse an existing regulatory action, not create new policy.