4. The director general of information technologies and the directors of operations are authorized to sign, for their branch, the following documents up to the amount specified:(1) supply contracts, supply contracts for resale and contracts for the rental of immovables for less than $50,000;
(2) construction contracts for less than $50,000 and orders for changes to construction contracts up to an amount of orders for changes for $50,000, but for less than $10,000 per order for change;
(3) professional services contracts and services contracts of a technical nature for less than $50,000;
(4) contracts for concessions where the annual sales figures are less than $50,000;
(5) contracts for the alienation of assets for less than $10,000.