40 CFR § 62.12157 - Effective date.

---
identifier: "/us/cfr/t40/s62.12157"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 62.12157 - Effective date."
title_number: 40
title_name: "Protection of Environment"
section_number: "62.12157"
section_name: "Effective date."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "62"
part_name: "APPROVAL AND PROMULGATION OF STATE PLANS FOR DESIGNATED FACILITIES AND POLLUTANTS"
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: "43 FR 51393, Nov. 3, 1978, unless otherwise noted."
cfr_part: "62"
---


# 62.12157 Effective date.

(a) The effective date of the plan is June 10, 2003.

(b) Plan revision #1 is effective October 2, 2009.

[68 FR 17741, Apr. 11, 2003, as amended at 74 FR 38346, Aug. 3, 2009]