R-9, r. 3 - Regulation respecting the agreement concerning the remuneration paid during phased retirement
4. The agreement automatically ceases to have effect in the first pay period that follows the pay period during which one of the following situations occurs:
(1) any condition prescribed in section 1 is no longer met;
(2) the amount of the remuneration that is to be considered as having been paid to the employee is changed;
(3) the employee becomes, in accordance with the Act respecting the Québec Pension Plan (chapter R-9), the beneficiary of a disability pension or a retirement pension.