{"data":{"id":"us/16-cfr-309.4","jurisdiction":"us","citation":"16 CFR 309.4","heading":"Preemption.","body":"Inconsistent state and local regulations are preempted to the extent they would frustrate the purposes of this part.","path":["Title 16—Commercial Practices","CHAPTER I—FEDERAL TRADE COMMISSION","SUBCHAPTER C—REGULATIONS UNDER SPECIFIC ACTS OF CONGRESS","PART 309—LABELING REQUIREMENTS FOR ALTERNATIVE FUELS AND ALTERNATIVE FUELED VEHICLES","Subpart A—General"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-16.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:29Z","sha256":"13f8be5f9aa799559d6284c0807991ff8e004bffc1f8308f3d20f11f61d679eb","source_id":"us-cfr","stale":true,"prev":"us/16-cfr-309.3","next":"us/16-cfr-309.10"},"notice":"GroundRules: Original legal text. Not legal advice."}