Code of Federal Regulations > Title 40 > Chapter I > Part 1066 - PART 1066—VEHICLE-TESTING PROCEDURES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 11, 2025

Subpart A [§ 1066.1 - § 1066.25] - Subpart A—Applicability and General Provisions

Subpart B [§ 1066.101 - § 1066.150] - Subpart B—Equipment, Measurement Instruments, Fuel, and Analytical Gas Specifications

Subpart C [§ 1066.201 - § 1066.290] - Subpart C—Dynamometer Specifications

Subpart D [§ 1066.301 - § 1066.315] - Subpart D—Coastdown

Subpart E [§ 1066.401 - § 1066.425] - Subpart E—Preparing Vehicles and Running an Exhaust Emission Test

Subpart F [§ 1066.501 - § 1066.501] - Subpart F—Electric Vehicles and Hybrid Electric Vehicles

Subpart G [§ 1066.601 - § 1066.695] - Subpart G—Calculations

Subpart H [§ 1066.701 - § 1066.710] - Subpart H—Cold Temperature Test Procedures

Subpart I [§ 1066.801 - § 1066.845] - Subpart I—Exhaust Emission Test Procedures for Motor Vehicles

Subpart J [§ 1066.901 - § 1066.985] - Subpart J—Evaporative Emission Test Procedures

Subpart K [§ 1066.1001 - § 1066.1010] - Subpart K—Definitions and Other Reference Material