U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 15, 2025

All TitlesTitle 40Chapter IPart 1037Subpart F - Subpart F—Test and Modeling Procedures
§ 1037.501 - General testing and modeling provisions.
§ 1037.510 - Duty-cycle exhaust testing.
§ 1037.520 - Modeling CO2 emissions to show that vehicles comply with standards.
§ 1037.525 - Aerodynamic measurements for tractors.
§ 1037.527 - Aerodynamic measurements for vocational vehicles.
§ 1037.528 - Coastdown procedures for calculating drag area (CdA).
§ 1037.530 - Wind tunnel procedures for calculating drag area (CdA).
§ 1037.532 - Using computational fluid dynamics for calculating drag area (CdA).
§ 1037.534 - Constant-speed procedure for calculating drag area (CdA).
§ 1037.540 - Special procedures for testing vehicles with hybrid power take-off.
§ 1037.551 - Engine-based simulation of powertrain testing.
§ 1037.555 - Special procedures for testing Phase 1 hybrid systems.
§ 1037.560 - Axle efficiency test.
§ 1037.565 - Transmission efficiency test.
§ 1037.570 - Procedures to characterize torque converters.
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