La. Stat. tit. 33 § 3524
The governing authority shall meet in open session on the date and at the place and hour named in the notice calling for sealed bids for the construction of the works, and open the bids and award the contract to the lowest responsible bidder who can furnish satisfactory security. They may, however, reject any and all bids, and at any time within a period of thirty days from the date of the reception and opening of the bids, award the contract for the works without further advertisement, provided, that no contract shall be let for an amount greater than that specified in the lowest sealed bid received from a responsible bidder. Any contract awarded under the provisions of this Sub-part shall be authorized by resolution empowering the authorized officer of the municipality, and the clerk or secretary to execute the contract, on behalf of and in the name of the municipality. A copy of the contract shall be set forth in full in the resolution, and the resolution shall be published in full in one issue of the official journal, and a certified copy of the resolution filed with the clerk of court of the parish in which the municipality is located, and duly recorded in the mortgage records of said parish without expense to the municipality. Where the work is undertaken by the municipality, the bids received for materials, equipment and supplies shall be opened, and awarded or rejected as hereinabove provided.
La. R.S. § 33:3524