74.2. Following such an application, the pension committee may approve any person appointed as arbitrator or substitute under the first or second paragraph of section 183 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10) to act as an arbitrator. If the pension committee does not approve at least two persons from among those referred to in the first paragraph, the Government, after consulting the pension committee, may appoint any arbitrators or substitutes it considers necessary who are qualified for approval, for any period it determines.