41.2. For the purposes of their partition and assignment, the benefits accrued under this plan shall be established according to the rules fixed by regulation, which may differ from the rules otherwise applicable under this Act and under Title IV of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10). The benefits shall be assessed in accordance with the actuarial rules, assumptions and methods determined by regulation, which may vary according to the nature of the benefits established.
The benefits shall be established and assessed on the date of institution of the proceedings or, if the court so decides, on the date on which the spouses ceased to live together.