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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 40
Chapter I
Part 1037
Subpart G - Subpart G—Special Compliance Provisions
§ 1037.601 - General compliance provisions.
§ 1037.605 - Installing engines certified to alternate standards for specialty vehicles.
§ 1037.610 - Vehicles with off-cycle technologies.
§ 1037.615 - Advanced technologies.
§ 1037.620 - Responsibilities for multiple manufacturers.
§ 1037.621 - Delegated assembly.
§ 1037.622 - Shipment of partially complete vehicles to secondary vehicle manufacturers.
§ 1037.630 - Special purpose tractors.
§ 1037.631 - Exemption for vocational vehicles intended for off-road use.
§ 1037.635 - Glider kits and glider vehicles.
§ 1037.640 - Variable vehicle speed limiters.
§ 1037.645 - In-use compliance with family emission limits (FELs).
§ 1037.655 - Post-useful life vehicle modifications.
§ 1037.660 - Idle-reduction technologies.
§ 1037.665 - Production and in-use tractor testing.
§ 1037.670 - Optional CO2 emission standards for tractors at or above 120,000 pounds GCWR.
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