External
The date the injury occurred is used in the PI Calculator:
- to ensure that the injury did not occur prior to the commencement of coverage of Defence Force personnel by the Commonwealth Employees' Compensation Act 1930 (the 1930 Act) on 3 January 1949; and
- to validate the date of assessment, the date the impairment became permanent and the date the impairment became stable - all of which cannot occur prior to the date of injury;
- to determine whether the threshold for entitlement in hearing loss cases is a binaural hearing loss of 20% (date of injury is before 1 October 2001) or 5% (date of injury is on or after 1 October 2001, or exposure to noise in service continued after that date).