; and (13) the States of Washington and Maine are leading the way in terms of taking action to limit PFAS chemicals in food packaging. 3. Definitions In this Act: (1) Administrator The term Administrator means the Administrator of the Environmental Protection Agency. (2) Fully fluorinated carbon atom The term fully fluorinated carbon atom means a carbon atom on which all the hydrogen substituents have been replaced by fluorine. (3) PFAS The term PFAS means perfluoroalkyl and polyfluoroalkyl substances that are man-made chemicals with at least 1 fully fluorinated carbon atom. 4. Designation as hazardous substances Not later than 1 year after the date of enactment of this Act, the Administrator shall designate all PFAS as hazardous substances under section 102(a) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9602(a) ). 5. Water infrastructure (a) Drinking water State revolving fund authorized activities Section 1452(k)(1) of the Safe Drinking Water Act ( 42 U.S.C. 300j–12(k)(1) ) is amended by adding at the end the following: (E) Provide assistance in the form of a grant to an owner of a household water well that has been contaminated by perfluoroalkyl and polyfluoroalkyl substances (commonly referred to as PFAS ) (as defined by the State in which the household well is located) for the purpose of purchasing and installing a household filtration system. . (b) PFAS grant program Part E of the Safe Drinking Water Act ( 42 U.S.C. 300j et seq.) is amended by adding at the end the following: 1459E. PFAS grant program (a) Definitions In this section: (1) Fully fluorinated carbon atom The term fully fluorinated carbon atom means a carbon atom on which all the hydrogen substituents have been replaced by fluorine. (2) PFAS The term PFAS means perfluoroalkyl and polyfluoroalkyl substances that are man-made chemicals with at least 1 fully fluorinated carbon atom. (b) Grants The Administrator shall carry out a grant program to provide grants to States and Indian tribes to