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Test and Modeling Procedures
Law
CFR 40
Protection of Environment
Environmental Protection Agency
Air Pollution Controls
Control of Emissions from New Heavy-Duty Motor Vehicles
Test and Modeling Procedures
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Section
1037.501
General testing and modeling provisions.
Section
1037.510
Duty-cycle exhaust testing.
Section
1037.515
Determining CO<sub>2</sub> emissions to show compliance for trailers.
Section
1037.520
Modeling CO<sub>2</sub> emissions to show compliance for vocational vehicles and tractors.
Section
1037.525
Aerodynamic measurements for tractors.
Section
1037.526
Aerodynamic measurements for trailers.
Section
1037.527
Aerodynamic measurements for vocational vehicles.
Section
1037.528
Coastdown procedures for calculating drag area (<em>C</em><sub>d</sub><em>A</em>).
Section
1037.530
Wind-tunnel procedures for calculating drag area (<em>C</em><sub>d</sub><em>A</em>).
Section
1037.532
Using computational fluid dynamics to calculate drag area (<em>C</em><sub>d</sub><em>A</em>).
Section
1037.534
Constant-speed procedure for calculating drag area (<em>C</em><sub>d</sub><em>A</em>).
Section
1037.540
Special procedures for testing vehicles with hybrid power take-off.
Section
1037.550
Powertrain testing.
Section
1037.551
Engine-based simulation of powertrain testing.
Section
1037.555
Special procedures for testing Phase 1 hybrid systems.
Section
1037.560
Axle efficiency test.
Section
1037.565
Transmission efficiency test.
Section
1037.570
Procedures to characterize torque converters.