No foreign law in Wyoming.

Wyoming's HB 119 prohibits state courts, tribunals, and agencies from applying foreign law (including international legal systems) that violates constitutional rights guaranteed by the U.S. and Wyoming constitutions, such as equal protection or free speech. The bill voids any court ruling based partly on such foreign law, but includes key exceptions for tribal law, religious matters, voluntary agreements to use foreign law, and federal treaties. It also prevents venue transfers in civil cases that would result in applying prohibited foreign law. The law takes effect July 1, 2026.