In response to a petition by Defenders of Wildlife, we, NMFS, are issuing a final rule to list the oceanic whitetip shark (Carcharinus lonigmanus) as threatened under the Endangered Species Act (ESA). We have reviewed the status of the oceanic whitetip shark, including efforts being made to protect the species, and considered public comments submitted on the proposed listing rule as well as new information received since publication of the proposed rule. Based on all of this information, we have determined that the oceanic whitetip shark warrants listing as a threatened species. At this time, we conclude that critical habitat is not determinable because data sufficient to perform the required analyses are lacking; however, we solicit information on habitat features and areas in U.S. waters that may meet the definition of critical habitat for the oceanic whitetip shark.