11. If the active members contribute 35% or less of the total contributions for service subsequent to 31 December 2015, the pension plan may provide that the proportion they assume from 1 January 2018 or from an earlier date agreed on by them and the employer is at least equal to the proportion they assumed before that date increased by at least half of the difference between that proportion and 50% of the total required contributions or the proportion determined under the second paragraph of section 10.
The proportion provided for in the first or second paragraph, as applicable, of section 10 must be reached not later than 1 January 2021.
2016, c. 132016, c. 13, s. 11.