{"data":{"id":"us/49-cfr-537.6","jurisdiction":"us","citation":"49 CFR 537.6","heading":"General content of reports.","body":"(a) Pre-model year and mid-model year reports. Except as provided in paragraph (c) of this section, each pre-model year report and the mid-model year report for each model year must contain the information required by § 537.7(a).\n(b) Supplementary report. Except as provided in paragraph (c) of this section, each supplementary report for each model year must contain the information required by § 537.7(a)(1) and (2), as appropriate for the vehicle fleets produced by the manufacturer, in accordance with § 537.8(b)(1) through (4) as appropriate.\n(c) Exceptions. The pre-model year report, mid-model year report, and supplementary report(s) submitted by an incomplete automobile manufacturer for any model year are not required to contain the information specified in § 537.7(c)(4)(xv) through (xviii) and (c)(5). The information provided by the incomplete automobile manufacturer under § 537.7(c) shall be according to base level instead of model type or carline.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER V—NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 537—AUTOMOTIVE FUEL ECONOMY REPORTS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"c42020e5e8c95993f3a3b429cc1524ba16205d5eb67e89c7ad080671c50052f7","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-537.5","next":"us/49-cfr-537.7"},"notice":"GroundRules: Original legal text. Not legal advice."}