Code of Federal Regulations > Title 40 > Chapter I > Part 82 > Subpart G > Appendix Appendix F - Appendix F to Subpart G of Part 82—Unacceptable Substitutes Listed in the January 26, 1999 Final Rule, Effective January 26, 1999

Regulations last checked for updates: May 20, 2024

Title 40 - Protection of Environment last revised: May 16, 2024

Appendix Appendix F - Appendix F to Subpart G of Part 82—Unacceptable Substitutes Listed in the January 26, 1999 Final Rule, Effective January 26, 1999

Refrigeration and Air-Conditioning Sector UnacceptabLe Substitutes

End-use	Substitute	Decision	Comments
All refrigeration and air-conditioning end uses	Hexafluoropropylene (HFP) and all HFP-containing blends	Unacceptable	Presents unacceptable toxicity risk.

[64 FR 3868, Jan. 26, 1999]

authority: 42 U.S.C. 7414,7601,7671

source: 57 FR 33787, July 30, 1992, unless otherwise noted.