40 CFR § 84.29 - Destruction of regulated substances.

---
identifier: "/us/cfr/t40/s84.29"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 84.29 - Destruction of regulated substances."
title_number: 40
title_name: "Protection of Environment"
section_number: "84.29"
section_name: "Destruction of regulated substances."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "84"
part_name: "PHASEDOWN OF HYDROFLUOROCARBONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Pub. L. 116-260, Division S, Sec. 103."
regulatory_source: "86 FR 55201, Oct. 5, 2021, unless otherwise noted."
cfr_part: "84"
---


# 84.29 Destruction of regulated substances.

(a) The following technologies are approved by the Administrator for destruction of all regulated substances except for HFC-23:

(1) Cement kiln;

(2) Gaseous/fume oxidation;

(3) Liquid injection incineration;

(4) Porous thermal reactor;

(5) Reactor cracking;

(6) Rotary kiln incineration;

(7) Argon plasma arc;

(8) Nitrogen plasma arc;

(9) Portable plasma arc;

(10) Chemical reaction with hydrogen and carbon dioxide;

(11) Gas phase catalytic de-halogenation; and

(12) Superheated steam reactor.

(b) The following technologies are approved by the Administrator for destruction of HFC-23:

(1) Gaseous/fume oxidation;

(2) Liquid injection incineration;

(3) Reactor cracking;

(4) Rotary kiln incineration;

(5) Argon plasma arc;

(6) Nitrogen plasma arc;

(7) Chemical reaction with hydrogen and carbon dioxide; and

(8) Superheated steam reactor.

[86 FR 55208, Oct. 5, 2021]