Section 22
SEC. 22. No contract for construction of a road, bridge, a public building, or other public improvement shall be entered into by the provincial government until the provincial treasurer shall, in writing, certify to the governor that there is in the provincial treasury a sum which may be lawfully devoted to such purpose sufficient to meet the estimated cost of the construction of the improvement; and after such certificate shall be made and filed and the contract entered into, the provincial treasurer shall treat the sum thus certified as not subject to warrant except to meet the obligations of the contract.