La. Stat. tit. 33 § 3303
The governing authority, after having given due notice of intention to make the proposed improvements and after disposing of all objections and after deciding to order the construction of the improvements, may without further delay have prepared the necessary plans and specifications for the work, and adopt a resolution or ordinance authorizing the advertisements for bids therefor, by giving notice, calling for sealed bids for the construction of the work. The notice shall be signed by an authorized officer of the municipality, and shall be published three times in at least two consecutive weeks in a newspaper published in the municipality or, if there is none, publication may be made in any newspaper having a general circulation in the parish where the municipality is located. The first insertion shall be not less than thirteen days prior to the reception and opening of the bids and the last publication shall be in the last week. The notice shall contain a general description of the work contemplated, shall refer to the plans and specifications which shall be placed on file with the clerk or secretary of the municipality, and shall designate the hour, date, and place for the reception and opening of the bids. It may provide that the contractor be required to accept certificates of the municipality in payment for the work performed and may stipulate that the right is reserved to reject any and all bids. Where the municipality has undertaken to construct the improvements, instead of being required to advertise for bids and award the contract for the construction of the work as prescribed in this Section, the governing authority may advertise in the manner hereinabove provided for sealed bids for the purchase of the materials, equipment, and supplies, but the prices at which the purchases are made shall not be greater than those specified in the lowest sealed bid received for the materials, equipment, and supplies, or any of them. Where no bids are received, the purchases may be made at market prices without further advertisement. The total cost of the improvement, including labor, materials, equipment, and supplies, together with engineers' and attorneys' fees, and all other expenses incidental to the cost of the improvements shall be assessed and paid in the manner and form provided in this Subpart.
La. R.S. § 33:3303