18. The associate director general of inquiries and penal proceedings or a senior director is authorized to sign the documents required for the purposes of(1) the provisions referred to in sections 19 to 21;
(2) section 17.4.1 of the Tax Administration Act (chapter A-6.002);
(2.1) section 21.2.1 of the Act respecting contracting by public bodies (chapter C-65.1);
(2.2) 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); and
(3) section 681 of the Act respecting the Québec sales tax (chapter T-0.1).