[hogster]

BOXHEAD
Motor vehicles Act NT Legislation.

You will need to apply for an exemption under section 16 sub - section 3 for an exemption, on the grounds that it will restrict airflow etc and that the inclusion of a suitable fitting would compromise safety of other persons should you hit a pedestrian.

Thats how I would do it.....

16 Affixing of number plates
(1) Subject to subsection (3), the owner of a registered motor vehicle, other than a registered motor cycle or trailer, shall, upon the issue to him of 2 number plates of a design, type and material determined by instrument by the Registrar for such a motor vehicle, cause them to be affixed, one to the front and the other to the rear of the motor vehicle, in accordance with the requirements of Schedule 4.

(2) Subject to subsection (3), the owner of a registered motor cycle or trailer shall, upon the issue to him of a number plate of a design, type and material determined by instrument by the Registrar, cause it to be securely affixed to the rear of the motor cycle or trailer.

(3) The Registrar may, in his discretion, upon such conditions as he deems fit, by instrument exempt a person from the requirements of subsection (1) or (2).

Cheers
Hogster