Motor Accident Permanent Impairment Guidelines

These Guidelines replace the Permanent Impairment Guidelines – Guidelines for the assessment of permanent impairment of a person injured as a result of a motor vehicle accident, issued by the Motor Accidents Authority and published in the NSW Government Gazette number 90 of 13 July 2007 at page 4581.

Under the Motor Accidents Compensation Act 1999, damages for non-economic loss can only be awarded where the permanent impairment is greater than 10% and is the result of an injury caused by a motor accident. The assessment of the degree of permanent impairment of an injured person is to be made in accordance with these Guidelines.

These Guidelines are based on the American Medical Association’s Guides to the Evaluation of Permanent Impairment, Fourth Edition (third printing, 1995) (AMA4 Guides). The AMA4 Guides are widely used as an authoritative source for the assessment of permanent impairment, however these Guidelines make significant changes to the AMA4 Guides to align them with Australian clinical practice and to better suit the purposes of the MAC Act.

These Guidelines commence on 1 June 2018.