7. A director general and an assistant director general are authorized to sign, for their branch,(1) supply contracts, supply contracts for resale, services contracts, construction contracts and immovable leases for less than $75,000;
(2) an amendment, that entails or not an additional expenditure, to a contract involving an expenditure below the public tender threshold applicable to the contract and whose total value of the contract including any additional expenditures is less than $75,000 or, in the case of supply contracts, below the public tender threshold for supply contracts;
(3) concession contracts where the potential turnover is less than $75,000; and
(4) contracts for the alienation of assets where the estimated market value of the property at the time of the alienation is less than $25,000.