397.A person is deemed to qualify for membership under the Pension Plan of Management Personnel pursuant to section 10 of this Act if the person has remained entitled to be governed by the special provisions enacted under Title IV.0.1 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10), as they read on 31 December 2000, ceased to be a member of that plan before 1 January 2001 and holds a non-unionizable employment referred to in Schedule I to this Act or holds pensionable employment under the Government and Public Employees Retirement Plan within 180 days from the date on which the person ceased to be governed by the plan.