A. The said waterworks certificates or amortized note, together with the mortgage or pledge securing same, shall be signed by the chief executive officer of the governing authority of any such political subdivisions and by its clerk or secretary, for, on behalf of, and in the name of the said political subdivision and under the seal thereof. If certificates are issued 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 political subdivision 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 ______, Louisiana."
B. The provisions of this section are applicable to sewer certificates issued by the Lafourche water district.