Primary annual contributions
5. Any primary annual contribution payable in pursuance of any local Act scheme into a superannuation fund transferred by this order may be reviewed at the first valuation of the superannuation fund of the successor authority after 1st April 1965, and until any such review the amount of any such primary annual contribution payable in consequence of a valuation of the fund as at any date before 1st April 1965 shall be reduced by the amount which would have been paid into the fund by the council maintaining the fund during the year ending 31st March 1965 had the scheme under which the fund was maintained contained a provision requiring the payment by the council to the fund of sums equivalent to those contributed by the council's employees.