Issued by the
Administrator of Vehicle Standards
in consultation with the
Australian Motor Vehicle Certification Board
comprising Commonwealth, State and Territory representatives



 

 

 

CIRCULAR 18/03 - 3 - 1

 

 

INTERPRETATIONS

 

Interpretation No 1

(Appendix A, Annex 1, Clause 5.2.5)

 

Question:         Should the speed of the vehicle at each nominated test speed be taken as the speed indicated by the speedometer, or the true speed as measured by the calibrated instrument?

 

Answer:           The nominated test speed (V1) of the vehicle shall be the speed as indicated on the speedometer. The true speed (V2) shall be read from the calibrated instrument.

                       

                        Example: If V1 = 80 km/h, then the vehicle’s speedometer at the time of the test must indicate 80 km/h (+/- the tolerance as indicated below in Interpretation 2).

 

 

Interpretation No 2

(Appendix A, Annex 1, Clause 5.2.5)

 

Question:         What tolerance on the nominated test speed (V1) is acceptable for the indicated speed of the vehicle during the test?

 

Answer:           The vehicle must be driven at the test speed +/- 2 km/h. Therefore, if the nominated speed is 80 km/h, it is acceptable that the indicated speed of the test vehicle be within the range of 78 to 82 km/h during the test. The indicated speed read from the speedometer shall be recorded to the nearest whole km/h. The true speed shall be recorded to a precision of one decimal place.