56. As regards years of pensionable service credited after 31 December 1991, the amount of the pension shall not exceed the amount obtained by totalling the following amounts:(1) the amount obtained by multiplying the defined benefits ceiling, applicable for the year of retirement and established under the Income Tax Act (R.S.C. 1985, c. 1 (5th Suppl.)), by the number of years of service credited subsequent to 31 December 1991;
(2) the amount obtained by calculating the reduction provided for in section 57, taking into account only the years of service credited subsequent to 31 December 1991.