USFWS, designated critical habitat for the northern Mexican gartersnake (Thamnophis eques megalops) under the ESA. In total, approximately 20,326 acres (8,226 hectares) in La Paz, Mohave, Yavapai, Gila, Cochise, Santa Cruz, and Pima Counties, Arizona, and Grant County, New Mexico, fall within the boundaries of the critical habitat designation for the northern Mexican gartersnake. This rule extends the Act's protections to the northern Mexican gartersnake's designated critical habitat. This rule is effective 28 May 2021. Jeff Humphrey, Field Supervisor, USFWS, Arizona Ecological Services Field Office, 9828 North 31st Ave #C3, Phoenix, AZ 85051-2517; tel 602-242-0210.

(Federal Register 28 April 2021 [Rule] pages 22518-22580)