La. Stat. tit. 25 § 220
The expenses or costs of maintenance of a public library established under this Part, including the salaries of librarian, assistants, and other employees as well as all other incidental expenses, shall be paid monthly by the governing authority establishing the library, upon the approval of such expenses and maintenance costs by the board of control of such library, out of the funds specially budgeted from the general fund for library purposes and, in default thereof, out of the special taxes voted, levied and collected by the governing authority for the library's support and maintenance. The board of control may delegate to the president or one of its members the duty of approving such monthly expenses and maintenance costs.
La. R.S. § 25:220