[bertm]

I worked for a long time as a chemical engineer making cadmium containing quantum dots. We had many discussions inside the company about complying with the EPA's TSCA regulations. https://www.epa.gov/laws-regulations/summary-toxic-substance...

The reason why these regulations exist was because toys and consumer goods would be imported with red paint that contained cadmium.

Usually the importer is responsible for complying or at least reporting to the EPA under TSCA.