On April 2, 2025, United States Citizenship and Immigration Services (“USCIS”) announced it is updating the USCIS Policy Manual  to recognize only two biological sexes, male and female, for all immigration-related benefits requests and documentation. Under the guidance, “USCIS considers a person’s sex as that which is generally evidenced on the birth certificate issued at or nearest to the time of birth.” The decision will impact a variety of key documents that the USCIS issues, including green cards, employment authorization documents, and naturalization certificates.