Section 11
SECTION 11. - Purchase of Materials and Supplies. -The Department Head concerned is authorized, in the interest of public service, subject to bidding and auditing requirements, to procure the necessary materials and supplies, needed for the construction, reconstruction, improvement, repair and/or maintenance of any public works project, regardless of the source of funds; Provided, That, when such materials and supplies are obtainable locally in the district, city or neighboring districts, the same may be procured by the District or City Engineer without prior authority from the Department Head; Provided, further, that, no surcharge shall be imposed for the service of procuring such materials and supplies; Provided, furthermore, that the cost of such materials and supplies shall not exceed the estimated cost of such materials and supplies stated in the approved program of work as provided under Section 3 hereof.