H.R. 10947 — Introduced in House

I 119th CONGRESS 2d Session H. R. 10947 IN THE HOUSE OF REPRESENTATIVES October 29, 2026Ms. Tlaib (for herself, Mrs. Watson Coleman, Ms. Waters, Ms. Garcia of Texas, Mr. Carson, Ms. Norton, Mr. Krishnamoorthi, and Ms. Bynum) introduced the following bill; which was referred to the Committee on Energy and Commerce A BILL 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. 1. Short title This Act may be cited as the Monitor Microplastics Now Act. 2. Monitoring program for certain unregulated contaminants under Safe Drinking Water Act (a) In general (1) In general The Administrator of the Environmental Protection Agency shall include the substances described in paragraph (2) in the sixth publication of the list of unregulated contaminants under section 1445(a)(2)(B)(i) of the Safe Drinking Water Act (42 U.S.C. 300j–4(a)(2)(B)(i)). (2) Substances described The substances described in this paragraph are nanoplastics and microplastics that are not subject to a national primary drinking water regulation. (3) Exception The substances included on the list of unregulated contaminants pursuant to paragraph (1) shall not count toward the limit of 30 unregulated contaminants under section 1445(a)(2)(B)(i) of the Safe Drinking Water Act (42 U.S.C. 300j–4(a)(2)(B)(i)). (4) Reissuance of final rule If a final rule for the sixth publication of the list of unregulated contaminants under section 1445(a)(2)(B)(i) of the Safe Drinking Water Act (42 U.S.C. 300j–4(a)(2)(B)(i)) is promulgated before the date of enactment of this Act, the Administrator of the Environmental Protection Agency shall reissue a final rule for such sixth publication to include the substances described in paragraph (2) on such list. (b) Definitions In this section: (1) Nanoplastic The term nanoplastic means a plastic fragment or particle less than 1,000 nanometers in diameter. (2) Microplastic The term microplastic means a plastic fragment or particle less than 5 millimeters in diameter.