The main purpose of this legislation is to clarify and enhance the rules regarding how goods are treated in foreign-trade zones in the United States, particularly in relation to tariffs. It aims to support U.S. competitiveness in manufacturing and distribution while also helping to create and preserve jobs within the country. Key provisions of the legislation include specific rules about the duty treatment of merchandise that is manufactured or altered in U.S. foreign-trade zones. It establishes that certain articles can enter the U.S.