La. Stat. tit. 38 § 1674.9
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
Drainage certificates issued hereunder shall have all the requisites of negotiable paper under the law merchant, and shall not be invalid for any irregularity or defect in the proceedings for their issuance, sale or delivery, and shall be incontestable in the hands of bona fide purchasers or holders for value thereof.
La. R.S. § 38:1674.9