40 CFR § 1037.527 - Aerodynamic measurements for vocational vehicles.

§ 1037.527 Aerodynamic measurements for vocational vehicles.

This section describes a methodology for determining aerodynamic drag area, CdA, for use in determining input values for vocational vehicles as described in § 1037.520. This measurement is optional.

(a) Determine ΔCdA values by performing A to B testing as described for trailers in § 1037.526, with any appropriate adjustments, consistent with good engineering judgment.

(b) [Reserved]

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