La. Stat. tit. 33 § 3967
The governing authority of the said district or sub-district shall meet in open session on the date and at the place and hour named in the notice calling for bids and shall proceed to open said bids and award the contract to the lowest responsible bidder, who can furnish satisfactory security or it may reject any and all bids, and at any time within a period of thirty days from date of reception and opening of said bids may award a contract for said work without further advertisement provided that no such 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 authorizing and empowering the governing authority of said sewerage district or sub-district to execute the said contract for and on behalf of and in the name of the district or sub-district and a copy of the said contract shall be set forth in full in said resolution and the said resolution shall be published in full in one issue of a newspaper published in said district or sub-district or, if there be none, published in some newspaper in the parish wherein the district or sub-district is located and a certified copy thereof filed in the office of the clerk of court of the parish in which the district or sub-district is located and same shall be recorded in the mortgage records of said parish.
La. R.S. § 33:3967