40 CFR § 52.249 - California Heavy-Duty inspection and maintenance program.
---
identifier: "/us/cfr/t40/s52.249"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 52.249 - California Heavy-Duty inspection and maintenance program."
title_number: 40
title_name: "Protection of Environment"
section_number: "52.249"
section_name: "California Heavy-Duty inspection and maintenance program."
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"
---
# 52.249 California Heavy-Duty inspection and maintenance program.
Approval of the California Heavy-Duty Vehicle Inspection and Maintenance Program, as approved on February 6, 2026 in table 1 of § 52.220a(c), is limited to vehicles registered in the State of California.
[91 FR 5351, Feb. 6, 2026]