La. Navigation and Shipping § 34:851.16
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
It shall be unlawful to use a motorboat unless the same is provided with an efficient muffler, underwater exhaust, or other modern device capable of adequately muffling the sound of the exhaust of the engine.
La. Navigation and Shipping § 34:851.16