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Regulations last checked for updates: May 16, 2025
Title 40 - Protection of Environment last revised: Nov 16, 2025
All Titles
Title 40
Chapter I
Part 1066 - PART 1066—VEHICLE-TESTING PROCEDURES
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
authority:
42 U.S.C. 7401-7671q.
source:
79 FR 23823, Apr. 28, 2014, unless otherwise noted.
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