La. Stat. tit. 39 § 472
Current with operative changes from the 2024 Third Special Legislative Session
Any certificate of indebtedness issued by any police jury of this state, and any resolution or ordinance authorizing these certificates, shall contain a provision that in case of default in the payment of principal or interest, the principal or interest, as to which there is default, shall bear interest from maturity until paid, at the rate of five per cent per annum.
La. R.S. § 39:472