40 CFR § 60.2970 - What is an air curtain incinerator?

---
identifier: "/us/cfr/t40/s60.2970"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 60.2970 - What is an air curtain incinerator?"
title_number: 40
title_name: "Protection of Environment"
section_number: "60.2970"
section_name: "What is an air curtain incinerator?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "60"
part_name: "STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
regulatory_source: "36 FR 24877, Dec. 23, 1971, unless otherwise noted."
cfr_part: "60"
---


# 60.2970 What is an air curtain incinerator?

(a) An air curtain incinerator operates by forcefully projecting a curtain of air across an open, integrated combustion chamber (fire box) or open pit or trench (trench burner) in which combustion occurs. For the purpose of this subpart and subpart FFFF of this part only, air curtain incinerators include both firebox and trench burner units.

(b) [Reserved]

[70 FR 74892, Dec. 16, 2005, as amended at 90 FR 27949, June 30, 2025]