40 CFR § 52.150 - Yavapai-Apache Reservation.

---
identifier: "/us/cfr/t40/s52.150"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.150 - Yavapai-Apache Reservation."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.150"
section_name: "Yavapai-Apache Reservation."
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"
---


# 52.150 Yavapai-Apache Reservation.

(a) The provisions for prevention of significant deterioration of air quality at 40 CFR 52.21 are applicable to the Yavapai-Apache Reservation, pursuant to § 52.21(a).

(b) In accordance with section 164 of the Clean Air Act and the provisions of 40 CFR 52.21(g), the Yavapai-Apache Indian Reservation is designated as a Class I area for the purposes of preventing significant deterioration of air quality.

[61 FR 56470, Nov. 1, 1996]