Anthony Chisholm (Queensland, Australian Labor Party, Assistant Minister for Education) Share this | Hansard source

A ratchet mechanism isn't appropriate for non-government schools because the Commonwealth's share for these schools needs to be able to transition down to 80 per cent of the schooling resource standard. Approximately 40 per cent of non-government schools are in the process of transitioning down. Should a future government wish to seek a different set of Commonwealth shares for non-government schools, this would be subject to disallowance by the parliament.