67. Subsequent pay equity claims---Where a further pay equity claim is
 validly made in relation to a female occupation and the contents of a
 pay equity settlement or determination in relation to that female
 occupation have, as the result of an earlier pay equity claim, been
 incorporated into the award or agreement, the Arbitration Commission
 shall, if the further claim proceeds to final offer arbitration, decide
 the issue of pay equity in relation to that award or agreement by taking
 into account only factors that have arisen since the previous claim was
 settled by the parties or determined by the Arbitration Commission.