Mo. Rev. Stat. § 260.1092: Federal law may preempt, when.

1. If federal law establishes a national program for the collection and recycling of equipment and the department determines that the federal law substantially meets the purposes of sections 260.1050 to 260.1101, the department may adopt an agency statement that interprets the federal law as preemptive of sections 260.1050 to 260.1101.

*2. Sections 260.1050 to 260.1101 shall expire on the date the department issues a statement under this section.