Document ID: chunk:federal_register_of_legislation:F2025C00107:reg:4:p4
Version: federal_register_of_legislation:F2025C00107
Segment Type: reg
Provision Reference: reg 4 (pt 4/26)
Character Range: 95393–98507

signal must light up when the 'Antilock System' is energised and must go off after not less than 2 seconds or at the latest when the vehicle reaches a speed of 15 km/h and no defect is present.

 1.                                  Specific provisions for category NB and NC vehicles incorporating an 'Antilock System'
     1.                            Where a manual device to disconnect or change the control mode of the 'Antilock System', is fitted to a category NB or NC vehicle designed for off‑road use (refer APPENDIX 1 for definition), the following conditions must be met:
         1.                     The vehicle with the 'Antilock System' disconnected or the control mode changed by the device referred to in clause 2.1 above must satisfy all the relevant requirements in clause 8 of this standard;
         2.                     An optical warning signal must inform the driver that the 'Antilock System' has been disconnected or the control mode changed; the red or yellow 'Antilock System' failure warning signal required by clause 1.2 of this appendix may be used for this purpose.  The warning signal may be constant or flashing;
         3.                     The 'Antilock System' must automatically be reconnected/returned to on‑road mode when the ignition (start) device is again set to the "ON" (run) position; or for vehicles fitted with a switch to positively select all-wheel drive, when all-wheel drive is deselected; or for vehicles fitted with permanent all-wheel drive; when any centre differential is unlocked; or for all-wheel drive vehicles fitted with a two speed transfer case, upon engagement of the higher of the two ranges; and
         4.                     The vehicle user's handbook provided by the manufacturer should warn the driver of the consequences of manual disconnection or mode change of the 'Antilock System'.
     2.                            The device referred to in clause 2.1 above may, in conjunction with the vehicle, disconnect/change the control mode of the 'Antilock System' of a trailer.  A separate device for the vehicle or the trailer alone is not permitted.

 2.                                  Alternative requirements
     1.                            The technical requirements of Annex 6 of the United Nations Regulation No. 13-H – UNIFORM PROVISIONS CONCERNING THE APPROVAL OF PASSENGER CARS WITH REGARD TO BRAKING SYSTEMS, incorporating the 01 series of amendments, are deemed to be equivalent to the technical requirements of this appendix for category MB, MC and NA vehicles.
     2.                            The technical requirements of Annex 13 of the United Nations Regulation No. 13 – UNIFORM PROVISIONS CONCERNING THE APPROVAL OF VEHICLES OF CATEGORIES M, N AND O WITH REGARD TO BRAKING, incorporating the 11 series of amendments, are deemed to be equivalent to the technical requirements of this appendix for category MD, ME, NA, NB and NC vehicles.
TABLE 6
'ANTILOCK SYSTEM' TESTS AND PROCEDURES
Tests and Procedures                                        Vehicle Category          Initial Speed (km/h)  Minimum 'Average