To direct the Administrator of the Environmental Protection Agency to include certain nanoplastics and microplastics on a certain list of unregulated contaminants published pursuant to the Safe Drinking Water Act, and for other purposes.

HR10947 is a bill introduced in the 119th Congress that would require the EPA to include certain nanoplastics and microplastics on the list of unregulated contaminants under the Safe Drinking Water Act. This is a procedural step that could lead to future monitoring and regulation of these contaminants in drinking water. The bill was introduced on October 29, 2026, and referred to the House Committee on Energy and Commerce. It has 7 cosponsors, all Democrats. The bill is in early stage with no further action. No funding is authorized. The legislative path requires committee consideration, potential markup, and passage through both chambers. Given the early stage and partisan sponsorship, the bill faces significant hurdles. The direct market impact is minimal at this stage, as the bill only directs the EPA to list contaminants, not to regulate them. Water utilities and plastic manufacturers could be affected if the listing leads to future regulation, but that is uncertain and distant. No specific companies are directly impacted by this bill alone.