The U.S. Fish and Wildlife Service 'announce a 6-month extension of the final determination of whether to list the Louisiana pinesnake (Pituophis ruthveni) as a threatened species' under the Endangered Species Act. The Fish and Wildlife Service is also reopening the comment period on the proposed rule to list the species for an additional 30 days. The extension is in response to 'substantial disagreement regarding available information related to the interpretation of the available survey data used to determine the Louisiana pinesnake's status and trends.' The US Fish and Wildlife Service will submit a final listing determination to the Federal Register on or before April 6, 2018.