5. A contract, except where referred to in paragraphs 5, 7 and 13 of section 8, may not be entered into with a supplier or a group of businesses acting as a supplier unless that supplier or the business in that group that is to carry out the contract holds a registration certificate issued by a registrar accredited by the Standards Council of Canada or by an accrediting body recognized by it, according to which it has a quality assurance system that covers the goods and services or construction work in question and complies with the ISO standard listed in Schedule I to the Regulation respecting supply contracts, construction contracts and service contracts of government departments and public bodies (O.C. 961-2000, 00-08-16) in the following cases:(1) where the main object of the contract is the supply of goods or services pertaining to a specialty and for an estimated amount listed in section 1 of that schedule; or
(2) where the contract is a construction contract that, in whole or in part, pertains to a specialty listed in section 3 of that schedule and the estimated amount for the part of the contract pertaining to that specialty is listed in that section.
The definitions of the specialties in that schedule correspond to those used for the registration of suppliers in the central register for the specialties where such registration is possible.