{"data":{"id":"us/40-cfr-1048.10","jurisdiction":"us","citation":"40 CFR 1048.10","heading":"How is this part organized?","body":"This part 1048 is divided into the following subparts:\n(a) Subpart A of this part defines the applicability of part 1048 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 § 1048.145 discusses 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) Subpart D of this part describes general provisions for testing production-line engines.\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) [Reserved]\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 1048—CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-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":"ad33a26c6f33a39dd06f55dee1dbbe0be286ef66afa3dfb1a2ac5db4d33a0312","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-1048.5","next":"us/40-cfr-1048.15"},"notice":"GroundRules: Original legal text. Not legal advice."}