Code of Federal Regulations > Title 40 > Chapter I > Part 1039 - PART 1039—CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 1039.1 - § 1039.30] - Subpart A—Overview and Applicability

Subpart B [§ 1039.101 - § 1039.140] - Subpart B—Emission Standards and Related Requirements

Subpart C [§ 1039.201 - § 1039.255] - Subpart C—Certifying Engine Families

Subpart D - Subpart D [Reserved]

Subpart E [§ 1039.401 - § 1039.401] - Subpart E—In-Use Testing

Subpart F [§ 1039.501 - § 1039.525] - Subpart F—Test Procedures

Subpart G [§ 1039.601 - § 1039.699] - Subpart G—Special Compliance Provisions

Subpart H [§ 1039.701 - § 1039.745] - Subpart H—Averaging, Banking, and Trading for Certification

Subpart I [§ 1039.801 - § 1039.825] - Subpart I—Definitions and Other Reference Information