{"data":{"id":"us/40-cfr-52.1340","jurisdiction":"us","citation":"40 CFR 52.1340","heading":"Control strategy: Carbon monoxide.","body":"Approval—A maintenance plan and redesignation request for the St. Louis, Missouri, area was submitted by the Director of the Missouri Department of Natural Resources on June 13, 1997. Additional information was received on June 15, 1998. The maintenance plan and redesignation request satisfy all applicable requirements of the Clean Air Act.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS","Subpart AA—Missouri"],"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":"46722f4f68d9dd33848a0d6b9c05a77c7dc0db363ddf55495bc0577aa7c5296a","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-52.1339","next":"us/40-cfr-52.1341"},"notice":"GroundRules: Original legal text. Not legal advice."}