28. A public servant employed as a member of the office staff of a Minister or of any other person contemplated in the first paragraph of section 124.1 of the Act respecting the National Assembly (chapter A-23.1) or as a member of the staff of a Member ceases to be subject to this Act, except sections 29, 30 and 129 to 131 and is governed by sections 11.5 and 11.6 of the Executive Power Act (chapter E-18) or by sections 124.1 and 124.2 of the Act respecting the National Assembly, as the case may be.
While the public servant is employed on an office staff or as a member of the staff of a Member, he retains his classification at the time of his appointment to the staff.