Monitoring (1) Monitoring requirements (A) In general Effective beginning on the date of enactment of this Act, the Administrator shall require monitoring of the discharges (including discharges into a publicly owned treatment works) of each measurable perfluoroalkyl substance, polyfluoroalkyl substance, and class of those substances for the point source categories and entities described in subparagraphs (A), (B), and (C) of subsection (b)(2). (B) Certain monitoring required Effective beginning on the date of enactment of this Act, the Administrator shall require monitoring of the discharges (including discharges into a publicly owned treatment works) of each measurable perfluoroalkyl substance, polyfluoroalkyl substance, and class of those substances for the following point source categories and entities: (i) Pulp, paper, and paperboard, as identified in part 430 of title 40, Code of Federal Regulations (or successor regulations). (ii) Airports (as defined in section 47102 of title 49, United States Code). (iii) Electrical and electronic components, as identified in part 469 of title 40, Code of Federal Regulations (or successor regulations). (2) Determination (A) In general Not later than December 31, 2025, the Administrator shall make a determination— (i) to commence developing effluent limitations guidelines and standards for the point source categories and entities listed in paragraph (1)(B)