21.5.A senior director is authorized to sign the documents required for the purposes of
(1) the provisions referred to in sections 21.6 to 21.8;
(2) section 17.4.1 of the Tax Administration Act (chapter A-6.002);
(3) section 21.2.1 of the Act respecting contracting by public bodies (chapter C-65.1);
(4) section 4 of the Regulation respecting the register of enterprises ineligible for public contracts and oversight and monitoring measures (chapter C-65.1, r. 8.1);
(5) section 681 of the Act respecting the Québec sales tax (chapter T-0.1).