40 CFR § 52.18 - Abbreviations.

---
identifier: "/us/cfr/t40/s52.18"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.18 - Abbreviations."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.18"
section_name: "Abbreviations."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "52"
part_name: "APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
cfr_part: "52"
---


# 52.18 Abbreviations.

Abbreviations used in this part shall be those set forth in part 60 of this chapter.

[38 FR 12698, May 14, 1973]