South Australian Consolidated Regulations

ROAD TRAFFIC (VEHICLE STANDARDS) RULES 1999 - REG 147A

147A—Exhaust emissions—diesel-powered vehicles

        (1)         When a registered motor vehicle (other than a motor bike or motor trike) powered by a diesel engine is subjected to a DT80 test—

            (a)         the vehicle must not emit oxides of nitrogen (NO _x ) at a rate (measured in grams of NO _x emitted per kilometre travelled per tonne of the vehicle's test mass) greater than that specified for the vehicle according to its GVM and age in the following table:

Vehicle's GVM (t)	Rate of NO x emissions (g/km/t)
	Vehicle manufactured in December 1995 or earlier	Vehicle manufactured in January 1996 or later
not greater than 3.5	1.5	1.5
more than 3.5 but not greater than 12	2.0	2.0
more than 12 but not greater than 25	2.0	1.5
more than 25	1.5	1.2

and

            (b)         the vehicle must not emit particulate matter (PM) at a rate (measured in grams of PM emitted per kilometre travelled per tonne of the vehicle's test mass) greater than that specified for the vehicle according to its GVM and age in the following table:

Vehicle's GVM (t)	Rate of PM emissions (g/km/t)
	Vehicle manufactured in December 1995 or earlier	Vehicle manufactured in January 1996 or later
not greater than 3.5	0.23	0.23
more than 3.5 but not greater than 12	0.23	0.15
more than 12 but not greater than 25	0.08	0.05
more than 25	0.07	0.03

and

            (c)         the opacity of the exhaust gas emitted by the vehicle must not be greater than 25% (averaged over the test).

        (2)         For the purposes of this rule—

            (a)         the "test mass" of a vehicle is—

                  (i)         if the vehicle is a prime mover—half the sum of the unladen mass of the vehicle and its GCM; or

                  (ii)         in any other case—half the sum of the unladen mass of the vehicle and its GVM; and

            (b)         the "unladen mass" of a vehicle is the mass of the vehicle without any load other than the fuel, oil, tools or prescribed equipment carried (either habitually or intermittently) on the vehicle; and

            (c)         if the mass of a vehicle has been specified by an Australian Authority, that mass may be used as the unladen mass of the vehicle for the purposes of determining the test mass unless there is reason to believe that it is not an accurate record of the unladen mass of the vehicle at the time of the test.

        (3)         In this rule—

"DT80 test" means a test carried out in accordance with the procedure set out in Schedule 1 at a test facility that is recognised, or meets the requirements for recognition, by the Australian Taxation Office for the purposes of the fuel tax credit system under the Fuel Tax Act 2006 of the Commonwealth;

"registered" means registered on the register of motor vehicles under the Motor Vehicles Act 1959 .