La. Stat. tit. 33 § 3989
The said sewerage certificates shall be signed by the chief executive officer of the governing authority of any such sewerage district and by its clerk or secretary, for, on behalf of and in the name of the said district and under the seal thereof. The interest coupons shall be signed with the facsimile signature of the said officers, and before delivery thereof, they shall be registered in the mortgage records of the parish in which the sewerage district is located as to the serial number, or numbers, amount, rate of interest and dates due. Each of the said certificates shall bear the following endorsement; viz:
"This certificate registered in the Mortgage Records of the Parish of __________on this the _____ day of ____________, 20___.
_______________________
Clerk of Court and Ex-Officio
Recorder of Mortgages,
Parish of ____________."
La. R.S. § 33:3989