La. Stat. tit. 33 § 3304
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. It shall not be necessary to set forth the contract in full in the resolution, but it shall be sufficient if the resolution refers to a copy of the contract on file in the office of the clerk or secretary where it is available for public inspection. The resolution shall be published in one issue of the official journal of the municipality and a certified copy thereof shall be filed with the clerk of court of the parish in which the municipality is located and shall be by him duly recorded in the mortgage records of the 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. § 33:3304