68. Salary bars---Where a pay equity adjustment is made in respect of
 an award or agreement, whether by decision of the Arbitration Commission
 or by agreement between the parties, the schedule of supplementary pay
 equity payments shall also contain a formula for adjusting any salary
 bar contained in the award or agreement, to the extent that such a
 salary bar is applicable to the work descriptions or position
 designations covered by the pay equity adjustment.