La. Stat. tit. 33 § 3064
Any governing authority may pledge or obligate current or future years' revenues of its general fund or of special funds not otherwise dedicated to the payment of insurance costs or to the repayment of principal and interest falling due or payable on borrowings under R.S. 33:3063. Such pledge or obligation of special funds shall have such priority of lien on the revenues of such funds as determined by the municipality, and such pledge or obligation of the general fund shall have such priority on the revenues of such fund as provided for charges rendered for services rendered annually under time contracts as provided in R.S. 33:2922. Neither the insurance contracts provided for in R.S. 33:3062, the borrowing described in R.S. 33:3063, nor the pledge of revenues provided for herein, shall require any approval of any governmental board, commission, agency, officer, or instrumentality other than the governing authority, notwithstanding any provision of law to the contrary.
La. R.S. § 33:3064