8.1. The person referred to in the first paragraph of section 8, who is a non-unionizable employee within the meaning of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10), shall contribute to this plan according to the contribution rate provided for in the said Act that is applicable to unionizable employees, from which 1 % must be subtracted. However, the reduction of 1 % must not be considered for the purposes of sections 31 to 31.2 of the Act respecting the Government and Public Employees Retirement Plan, nor for the purposes of Chapter VI.1 of this Act or for the purpose of computing the benefits payable under this plan.