Northern Territory Consolidated Acts Northern Territory Consolidated Acts4C. Permanent impairment
(1) The question whether an impairment or combination of impairments is permanent and, if so, the extent of the permanent impairment is to be determined by the Board.
(2) The determination is to be made:
(a) in accordance with the American Medical Association Guides to the Evaluation of Permanent Impairment as published from time to time; and
(b) on the advice of a medical practitioner.
(3) The extent of a permanent impairment is to be expressed as a percentage of the whole person in accordance with the relevant Guides.
(4) An impairment is not considered to be a permanent impairment unless the extent of the impairment as assessed in accordance with this section is at least 5%.