70.6.1.If the chair of the committee is absent or unable to act, the chair of the pension committee established under section 196.2 of the Act respecting the Pension Plan of Management Personnel (chapter R-12.1) shall replace the chair of the committee temporarily. If the chair of that pension committee is also absent or unable to act, the chair of the pension committee established under section 163 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10) shall replace the chair of the committee.