Regulations last checked for updates: Nov 25, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
Appendix Appendix A - Appendix A to Part 84—Regulated Substances

HFCs Listed as Regulated Substances in the AIM Act 1

HFC Chemical formula Exchange value
HFC-134CHF2CHF21,100
HFC-134aCH2FCF31,430
HFC-143CH2FCHF2353
HFC-245faCHF2CH2CF31,030
HFC-365mfcCF3CH2CF2CH3794
HFC-227eaCF3CHFCF33,220
HFC-236cbCH2FCF2CF31,340
HFC-236eaCHF2CHFCF31,370
HFC-236faCF3CH2CF39,810
HFC-245caCH2FCF2CHF2693
HFC-43-10meeCF3CHFCHFCF2CF31,640
HFC-32CH2F2675
HFC-125CHF2CF33,500
HFC-143aCH3CF34,470
HFC-41CH3F92
HFC-152CH2FCH2F53
HFC-152aCH3CHF2124
HFC-23CHF314,800

1 This table includes all isomers of the substances above, regardless of whether the isomer is explicitly listed on its own.

[86 FR 55222, Oct. 5, 2021]
authority: Pub. L. 116-260, Division S, Sec. 103
source: 86 FR 55201, Oct. 5, 2021, unless otherwise noted.