See Schedule 5 of the Noongar Standard Heritage Agreement for the rates which include reference to the Consumer Price Indexation (CPI). CPI is varied annually; see the Australian Bureau of Statistics for the CPI for the relevant year.
The rate for Aboriginal Heritage Consultants was originally specified to be $500 (maximum) plus CPI. From August 2020 the total sum including CPI increases is calculated at $526.78 as shown to the right.