Proposal to clarify that all speedometers and/or odometers installed on a vehicle in the case of more than one shall comply with the requirements of UN R39.

Proposal from the task force on UN R39 Mileage Accuracy to amend and supplement the existing requirements for odometers to include provision on:

• accuracy of the on-board odometer mileage values,
• anti-tampering of the on-board odometer mileage values,
• accuracy and anti-tampering of the odometer mileage values displayed to the driver.