{"data":{"id":"us/40-cfr-85.2302","jurisdiction":"us","citation":"40 CFR 85.2302","heading":"Definition of model year.","body":"Model year means the manufacturer's annual production period (as determined under § 85.2304) which includes January 1 of such calendar year, provided, that if the manufacturer has no annual production period, the term “model year” shall mean the calendar year.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 85—CONTROL OF AIR POLLUTION FROM MOBILE SOURCES","Subpart X—Determination of Model Year for Motor Vehicles and Engines Used in Motor Vehicles Under Section 177 and Part A of Title II of the Clean Air Act"],"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":"6b14686825e96107ab9dcfcb5ee08ed96d8a4d5737dfb3aacf176c2e905e86a1","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-85.2301","next":"us/40-cfr-85.2303"},"notice":"GroundRules: Original legal text. Not legal advice."}