12. The head of contract services is authorized, in the exercise of his or her powers, duties and functions, to sign(1) supply contracts for less than $10,000;
(2) shipping orders for less than $25,000; and
(3) services contracts for less than $10,000, except(a) services contracts relating to the hiring of a labour relations negotiator or arbitrator, of an expert witness before the court or of a physician or a dentist in matters of medical assessment;
(b) services contract entered into with, as the case may be, a natural person, a public body or a non-profit organization; and
(c) insurance contracts, financial services contracts, banking services contracts or legal services contracts.
The secretary of the Conseil du trésor, the administrative director general or the director of material resources is authorized to sign endorsements or amending contracts for the purpose of adding a supplement to a services contract signed by the delegatee referred to in the first paragraph.