Code of Federal Regulations > Title 40 > Chapter I - CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Part 53 [§ 53.1 - § 53.66] - PART 53—AMBIENT AIR MONITORING REFERENCE AND EQUIVALENT METHODS

Part 54 [§ 54.1 - § 54.3] - PART 54—PRIOR NOTICE OF CITIZEN SUITS

Part 55 [§ 55.1 - § 55.15] - PART 55—OUTER CONTINENTAL SHELF AIR REGULATIONS

Part 56 [§ 56.1 - § 56.7] - PART 56—REGIONAL CONSISTENCY

Part 57 [§ 57.101 - § 57.816] - PART 57—PRIMARY NONFERROUS SMELTER ORDERS

Part 58 [§ 58.1 - § 58.61] - PART 58—AMBIENT AIR QUALITY SURVEILLANCE

Part 59 [§ 59.1 - § 59.699] - PART 59—NATIONAL VOLATILE ORGANIC COMPOUND EMISSION STANDARDS FOR CONSUMER AND COMMERCIAL PRODUCTS