Regulations last checked for updates: Feb 07, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 52.13 - Air quality surveillance; resources; intergovernmental cooperation.

Disapproved portions of the plan related to the air quality surveillance system, resources, and intergovernmental cooperation are identified in each subpart, and detailed critiques of such portions are provided to the State. No provisions are promulgated by the Administrator.

authority: 42 U.S.C. 7401
cite as: 40 CFR 52.13