10C All pensions in payment from the BR Pension Scheme on 1st July 1988 and all preserved pensions for Members who left the BR Pension Scheme before 1st July 1988 with a preserved benefit under rule 25(3) of the BR Rules and pensions in respect of Members who were active members of the BR Pension Scheme on 1st July 1988 and who attained State Pension Age before 6th April 1988 and who made no election under rule 15(1)(A)(a) of the BR Rules shall be calculated on the basis that they shall be increased by the greater of (a) £4 per week and (b) 15% with effect from 1st July 1988.
No increase shall be paid, however, to or in respect of a Member whose period of Contributory Membership commenced on or after 1st April 1987.
No increase shall be made to the pension payable to a Joint Annuitant under paragraph (9) of Rule 8D (Joint Annuitant’s Pension).
For a Member who ceased to contribute to the BR Pension Scheme before 1st July 1988, any spouse’s or adult dependant’s pensions contingently payable under the BR Rules as they stood at the date the Member ceased to contribute to the BR Pension Scheme shall be increased by the greater of (a) £4 per week and (b) 15% with effect from 1st July 1988.