Code, to implement this section. In developing the regulations, the Commission may consult with the Administrator of the Environmental Protection Agency, the Commissioner of Food and Drugs, the Consumer Product Safety Commission, or any other agency as appropriate. (4) Authority preserved Nothing in this section may be construed to limit the authority of the Commission under any other provision of law. (f) Preemption of State laws No State or political subdivision of a State may directly or indirectly establish or continue in effect, under any authority, requirements with respect to the Do Not Flush labeling of covered products that are not identical to the requirements of this section and the regulations promulgated under this section. (g) Definitions In this section: (1) Combined product The term combined product means two or more products sold in shared retail packaging, of which— (A) at least one of the products is a covered product