La. Stat. tit. 39 § 1110
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
The pledge and dedication of the tax shall be irrepealable and irrevocable by any authority whatsoever until the bonds have been paid in principal and interest.
La. R.S. § 39:1110