40 CFR Parts 52.01 to 52.018 continues coverage on the United States Environmental Protection Agency. In this volume, you will find rules, processes, procedures, and regulations pertaining to specific states monitoring of transportation air quality provisions, emissions testing, compliance, and enforcement. It also includes regulations, rules and processes for ozone controls and strategy, and more. Code of Federal Regulations Title 40, Volume 3, July 1, 2015 Containing parts Part 52, §§ 52.01 to 52.1018 Part 52; APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS