40 CFR § 52.673 - Approval status.

---
identifier: "/us/cfr/t40/s52.673"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.673 - Approval status."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.673"
section_name: "Approval status."
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: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
cfr_part: "52"
---


# 52.673 Approval status.

With the exceptions set forth in this subpart, the Administrator approves Idaho's plan for the attainment and maintenance of the national standards.