Guam, an unincorporated U.S. territory, lacks specific statutes in the Guam Code Annotated (GCA) addressing artificial insemination (AI) or sperm donation, including informal at-home arrangements. Parentage is governed by general laws under 19 GCA § 4104, which establishes legitimacy based on biology and marriage, supplemented by federal U.S. oversight via the Organic Act of Guam (48 U.S.C. § 1421 et seq.). Without tailored legislation, informal AI operates in a legal gray area, with paternity likely defaulting to biological ties absent clear intent or judicial clarification. As of March 2025, no case law directly tests this, leaving Guam’s framework uncertain and reliant on U.S. common law trends.
Guam’s absence of specific laws on informal sperm donation, governed by 19 GCA § 4104 and influenced by U.S. common law, leaves donors and recipients in a legal gray area. Donors risk biological paternity claims, and recipients may need court or adoption proceedings, making this an uncertain landscape absent legislative reform.