Note: Nothing in this standard supersedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose. The purpose of this test procedure is to document the methodology for acquiring on-road powertrain sound quality data.

Forward. This procedure is a guideline for measuring a vehicle's interior noise performance on road. Special emphasis has been given to noises produced by a hybrid vehicle's drivetrain components.

Applicability. This procedure applies to vehicle tests for all passenger vehicles (including hybrids), and light commercial vehicles.

Note: Only the latest approved standards are applicable unless otherwise specified.