U.S. Fish and Wildlife Service proposes to designate critical habitat for 9 animal species and 13 plant species from the Mariana Islands (the U.S. Territory of Guam and the Commonwealth of Northern Mariana Islands) under the Endangered Species Act (Act). In total across both the Territory and Commonwealth, approximately 59,886 acres (24,235 hectares) on the islands of Aguiguan, Alamagan, Asunción, Guam (including the island of Cocos), Pagan, Rota, Saipan, Sarigan, and Tinian fall within the boundaries of the proposed critical habitat designation. They also announce the availability of an economic analysis of the proposed designation of critical habitat for these species. They will accept comments received or postmarked on or before 22 June 2026. POC is Earl W. Campbell, Project Leader, U.S. Fish and Wildlife Service, Pacific Islands Fish and Wildlife Office, 300 Ala Moana Boulevard, Room 3-122, Honolulu, HI 96850; by telephone 808-792-9400. (Federal Register 24 March 2026 [Proposed Rule] Pages 14074-14303)