Establishes the "No Shari'a Law Act" which prohibits the application and enforceability of foreign law, legal codes, and systems

HB 3346 prohibits Missouri courts, arbitration panels, and agencies from applying or enforcing foreign law - including Shari'a law or any other legal system from outside the U.S. - when it conflicts with fundamental rights like due process, equal protection, or freedom of religion. It specifically voids court rulings, contracts, or arbitration decisions that rely on such foreign law, particularly in family matters like marriage, custody, or inheritance. The bill exempts religious organizations' internal affairs, voluntary agreements by businesses to foreign courts, and federal treaties. It directly affects Missouri courts, legal contracts, and dispute resolution processes involving foreign legal systems.