La. Stat. tit. 33 § 3063
Any governing authority may borrow money for the purpose of financing any advance payment of the cost of insurance or in the case of an interlocal risk management agency, to establish reserves for risk sharing or for reinsurance purposes. Such borrowing shall be for a term not exceeding ten years, shall bear interest at such rate or rates determined by the governing authority and shall be authorized by appropriate ordinance or resolution of the governing authority or board of trustees of an interlocal risk management agency. The resolution or ordinance authorizing such borrowing may contain appropriate covenants requiring the governing authority to budget in future years sufficient revenues to meet all anticipated expenditures, and may otherwise contain such other covenants as the governing authority deems appropriate including but not limited to covenants regarding expenditure of revenues, accounting, and reporting. The interest on such borrowing shall be exempt from all taxation in the state of Louisiana and no court shall have authority or jurisdiction to inquire into the legality of such borrowing and the terms thereof if the validity thereof is not raised within thirty days of the publication of the resolution or ordinance authorizing such borrowing.
La. R.S. § 33:3063