9810 CH 2 FCF 2 CHF 2 HFC-245ca 693 CF 3 CHFCHFCF 2 CF 3 HFC-43–10mee 1640 CH 2 F 2 HFC-32 675 CHF 2 CF 3 HFC-125 3500 CH 3 CF 3 HFC-143a 4470 CH 3 F HFC-41 92 CH 2 FCH 2 F HFC-152 53 CH 3 CHF 2 HFC-152a 124 CHF 3 HFC-23 14800 (b) Requirements The list required under subsection (a) shall include— (1) any isomer of any such regulated substance