{"data":{"id":"us/40-cfr-1039.10","jurisdiction":"us","citation":"40 CFR 1039.10","heading":"How is this part organized?","body":"This part 1039 is divided into the following subparts:\n(a) Subpart A of this part defines the applicability of part 1039 and gives an overview of regulatory requirements.\n(b) Subpart B of this part describes the emission standards and other requirements that must be met to certify engines under this part. Note that § 1039.102 and § 1039.104 discuss certain interim requirements and compliance provisions that apply only for a limited time.\n(c) Subpart C of this part describes how to apply for a certificate of conformity.\n(d) [Reserved]\n(e) Subpart E of this part describes general provisions for testing in-use engines.\n(f) Subpart F of this part describes how to test your engines (including references to other parts of the Code of Federal Regulations).\n(g) Subpart G of this part and 40 CFR part 1068 describe requirements, prohibitions, and other provisions that apply to engine manufacturers, equipment manufacturers, owners, operators, rebuilders, and all others.\n(h) Subpart H of this part describes how you may generate and use emission credits to certify your engines.\n(i) Subpart I of this part contains definitions and other reference information.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER U—AIR POLLUTION CONTROLS","PART 1039—CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES","Subpart A—Overview and Applicability"],"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":"626dccc681e579ed46c7b8ba2bf4b7671f89333f18fc406e5597c3ed8bfa0ec7","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-1039.5","next":"us/40-cfr-1039.15"},"notice":"GroundRules: Original legal text. Not legal advice."}