La. Stat. tit. 33 § 134
A commission may appoint such employees as it may deem necessary for its work, whose appointment, promotion, demotion, and removal shall be subject to the same general provisions as govern other corresponding civil employees of the parishes and municipalities cooperating to engage in regional planning. A commission may also contract with planning experts, engineers, architects, and other consultants for such services as it may require. The expenditures of a commission, exclusive of those made from funds received by gift, or grants of federal, state and other such agencies, shall be within the amounts appropriated for the purpose by the cooperating local legislative bodies, which shall provide the funds, equipment, and accommodations necessary for a commission's work.
La. R.S. § 33:134