Any remission of rates or charges made before 1 July 2001 under section 4 of the Principal Act was validly made if made to the following persons:(a) a person who is a totally and permanently incapacitated person to whom section 24 of the Veterans' Entitlements Act 1986 of the Commonwealth applies;(b) a person who is a war widow or war widower receiving a pension under Part II or IV of the Veterans' Entitlements Act 1986 of the Commonwealth at a rate determined in accordance with subsection 30(1) of that Act.