Document ID: chunk:federal_register_of_legislation:F2006L02297:body:0:p3
Version: federal_register_of_legislation:F2006L02297
Segment Type: other
Provision Reference: 
Character Range: 8248–11700

425/65 R 22.5................300

65.4.                                MAXIMUM ROAD SPEED LIMITED BY ROAD SPEED GOVERNOR
         The maximum road speed capability shall be controlled by the use of a road speed governor in accordance with the following:
65.4.1.                          The maximum road speed setting must not be capable of being temporarily increased or removed.
65.4.2.                          The road speed limiting function shall not actuate the vehicle's service braking system.
65.4.3.                          The road speed limiting function may allow normal accelerator control for the purposes of changing gear.
65.4.4.                          No malfunction shall result in an increase in engine power above that demanded by the position of the driver's accelerator control.
65.4.5.                          All components necessary for the full function of the road speed limiting function shall be energised whenever the vehicle is being driven.
65.4.6.                          The following parts shall be provided with the facility for sealing by a recognised authority:
65.4.6.1.                    the governor road speed adjustment mechanism;
65.4.6.2.                    the two ends of the link between the road speed limiter and the injection pump;
65.4.6.3.                    the two ends of the link between the road speed limiter and the device providing the road speed signal;
65.4.6.4.                    all internal parts of the road speed limiting equipment shall be made resistant to tampering by means of casings capable of being sealed; and
65.4.6.5.                    the control unit in the case of an electronic road speed governor to prevent unauthorised entry into the box containing the electronic control circuitry.
65.4.7.                          In the case of electronically re-programmable control devices:
65.4.7.1.                    The system shall have provision to record and store in retrievable memory the current maximum road speed setting.
65.4.7.2.                    The 'Manufacturer' shall advise the 'Administrator' of the protocol to be used to retrieve the data referred to in this clause.
65.4.8.                          In the case of electronically re-programmable control devices the vehicle 'Manufacturer' shall establish and maintain 'Approved' arrangements to ensure that the maximum road speed capability of vehicles cannot be changed without necessary authorisation.
         These arrangements may be established by the vehicle 'Manufacturer' in conjunction with the engine manufacturer, and are to restrict the capability to change maximum road speed to authorised agencies such as State or Territory distributorships of the vehicle and/or engine manufacturers.

65.5.                                MAXIMUM ROAD SPEED CAPABILITY
65.5.1.                          For a hauling vehicle designed for use in a "Road Train" the maximum road speed capability shall be no greater than that determined by the appropriate State or Territory authority..
65.5.2.                          For other heavy goods vehicles and heavy omnibuses the maximum road speed capability shall be no greater than 100 km/h.
65.6.                                TEST OF ROAD SPEED LIMITATION

         This test is to determine the maximum road speed capability of vehicles.

         A vehicle representative of the vehicle type or a device representative of the road speed governor