La. Stat. tit. 38 § 1596.9
The drainage certificates shall be signed by the president of the governing authority and by its clerk or secretary for, on behalf of, and in the name of the district and under the seal thereof. The interest coupons, if any, shall be signed with the facsimile signature of the officers. Before delivery of the certificates, they shall be registered in the mortgage records of Ouachita Parish as to the serial number or numbers, amount, rate of interest, and the dates due. Each of the certificates shall bear the following endorsement, viz:
"This certificate registered in the Mortgage Records of the Parish of Ouachita on this the _______ day of _________________, 19__.
____________________________
Clerk of Court and Ex-Officio
Recorder of Mortgages, Parish
of Ouachita"
La. R.S. § 38:1596.9