{"data":{"id":"us/40-cfr-51.901","jurisdiction":"us","citation":"40 CFR 51.901","heading":"Applicability of part 51.","body":"The provisions in subparts A through W of part 51 apply to areas for purposes of the 8-hour NAAQS to the extent they are not inconsistent with the provisions of this subpart.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 51—REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS","Subpart X—Provisions for Implementation of 8-hour Ozone National Ambient Air Quality Standard"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"819db303b45fd6cbc64fc8e816bb480401d00f23e6999fd792489b07ae41cf61","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-51.900","next":"us/40-cfr-51.902"},"notice":"GroundRules: Original legal text. Not legal advice."}