Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart PPP > Appendix - Table 4 to Subpart PPP of Part 63—Known Organic HAP From Polyether Polyol Products

Regulations last checked for updates: Apr 05, 2025

Title 40 - Protection of Environment last revised: Nov 05, 2025

Appendix - Table 4 to Subpart PPP of Part 63—Known Organic HAP From Polyether Polyol Products

Organic HAP/chemical name [CAS No.]
1,3 Butadiene
(106990)
Epichlorohydrin
(106898)
Ethylene Oxide
(75218)
n-Hexane
(110543)
Methanol
(67561)
Propylene Oxide
(75569)
Toluene
(108883)

CAS No. = Chemical Abstracts Service Registry Number.

[65 FR 26505, May 8, 2000]

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.