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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
Subpart E - Subpart E—Preparing Vehicles and Running an Exhaust Emission Test
§ 1066.401 - Overview.
§ 1066.405 - Vehicle preparation, preconditioning, and maintenance.
§ 1066.410 - Dynamometer test procedure.
§ 1066.415 - Vehicle operation.
§ 1066.420 - Test preparation.
§ 1066.425 - Performing emission tests.
authority:
42 U.S.C. 7401-7671q.
source:
79 FR 23823, Apr. 28, 2014, unless otherwise noted.
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