The refunding of the outstanding bonds of a levee district or levee and drainage district into the bonds authorized by this Subpart may be effected by a direct exchange of bonds or by a negotiation of the bonds authorized by this Subpart, and the application of the proceeds to the payment of redemption of the bonds now outstanding.
La. R.S. § 38:433
REGARDING R.S. 38:431-436, SEE ALSO R.S. 38:1117(A)(3) AS PER ACTS 1985, NO. 466, §2, WHICH MAY BE CONFLICTING.