Northern Territory Consolidated Regulations Northern Territory Consolidated Regulations(1) The following vehicles must display road train warning signs complying with this rule and rule 62:
(a) a combination over 36.5 metres long;
(b) a road train over 30 metres, but not over 36.5 metres, long that includes 1 or more dog trailers.
(2) The following vehicles must display road train warning signs, or a long vehicle warning sign, complying with this rule and rule 62:
(a) a road train over 22 metres, but not over 30 metres, long that includes 1 or more dog trailers;
(b) a road train over 22 metres, but not over 36.5 metres, long that does not include a dog trailer.
(3) Another combination over 22 metres, but not over 36.5 metres, long must display a long vehicle warning sign complying with this rule and rule 62.
(4) Subrules (1), (2) and (3) do not apply to the extent of any inconsistency with a notice or permit issued under another law of this jurisdiction that applies to the combination.
(5) Road train warning signs must be used in pairs and fitted horizontally, one at the front and the other at the rear of the combination.
(6) A long vehicle warning sign must be fitted horizontally at the rear of the combination.