La. Revenue and Taxation § 47:1504
The collector shall cause to be formulated, and shall prescribe, a definite plan of organization of the Department of Revenue and its procedures to provide for the most effective execution of the purposes of this Sub-title. This plan shall include such elements as unified and systematic procedures, definite allocation of functions to the divisions and other component parts of the department, proper housing and layout of quarters to facilitate supervision, effective routing and flow of work, and coordination of staff efforts in carrying out the procedures prescribed. The collector shall cause to be prepared standard practice instructions for the guidance of all concerned in the operation of the prescribed system, and for placing the prescribed procedures into effect and fitting them to the plan of organization established in accordance with law.
La. Revenue and Taxation § 47:1504