Louisiana Revised Statutes Tit. 41, § 51. Surveys and plats

(1) To make, from time to time, surveys of all unsurveyed lands belonging and that may hereafter belong to this state and to subdivide them into townships, sections and other proper subdivisions that may be necessary for their identification, description, entry and sale. In the event the Department of Transportation and Development cannot timely cause a requested survey to be made, then the register may on his own initiative cause a survey or surveys to be made of state lands which survey shall be subject to approval by the secretary of the Department of Transportation and Development. The cost of such a survey shall be borne by the register of the state land office.

(2) To prepare duly certified maps and plats of the lands and to file them in the state land office as soon as completed.