{"data":{"id":"us/40-cfr-52.14","jurisdiction":"us","citation":"40 CFR 52.14","heading":"State ambient air quality standards.","body":"Any ambient air quality standard submitted with a plan which is less stringent than a national standard is not considered part of the plan.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS","Subpart A—General Provisions"],"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":"daf69e4f72fb5643563558f4425f36b4dddb768ea810c9de668eec5907cac11f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-52.13","next":"us/40-cfr-52.15"},"notice":"GroundRules: Original legal text. Not legal advice."}