Overturns the Fish and Wildlife Service rule that listed the San Francisco Bay-Delta population of longfin smelt as endangered, so the rule has no force or effect.

Official title: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the United States Fish and Wildlife Service relating to "Endangered and Threatened Wildlife and Plants; Endangered Species Status for the San Francisco Bay-Delta Distinct Population Segment of the Longfin Smelt".