R-15.1, r. 6.2 - General Regulation respecting supplemental pension plans
9.1. For the application of section 44.2 of the Act, the following 2 periods are established:
(a) the 12-month period immediately preceding the day when, for the first time during a delay in the payment of a pension, a reduced salary or reduced wages become payable to an employee; and
(b) the 12-month period beginning on the day when the employee receives a reduction in salary or wages for which he applies for compensation.