State Religious Freedom Restoration Acts are state laws based on the Religious Freedom Restoration Act (RFRA), a federal law that was passed almost unanimously by the U.S. Congress in 1993 and signed into law by President Bill Clinton. The laws mandate that religious liberty of individuals can only be limited by the "least restrictive means of furthering a compelling government interest". Originally, the federal law was intended to apply to federal, state, and local governments. In 1997, the U.S. Supreme Court in City of Boerne v. Flores held that the Religious Freedom Restoration Act only applies to the federal government but not states and other local municipalities within them. As a result, 21 states have passed their own RFRAs that apply to their individual state and local governments.