Louisiana Revised Statutes; Title 14: Section 98
Type of DUID Law: Under the influence
Section 14:98 A. (1) The crime of operating a vehicle while intoxicated is the operating of any motor vehicle, aircraft, watercraft, vessel, or other means of conveyance when: …
(c) The operator is under the influence of any controlled dangerous substance listed in Schedule I, II, III, IV, or V as set forth in La. R.S. 40:964
(d)(i) The operator is under the influence of a combination of alcohol and one or more drugs which are not controlled dangerous substances and which are legally obtainable with or without a prescription.
(e)(i) The operator is under the influence of one or more drugs which are not controlled dangerous substances and which are legally obtainable with or without a prescription.
Type of Drugs Prohibited: Virtually all controlled substances in Schedules I, II, III, IV and V, prescription and OTC medications
Marijuana use in vehicle Louisiana allows certain registered patients to use marijuana for medicinal purposes, although not through inhalation. Louisiana laws do not specifically address the use of marijuana in a vehicle.
Reference: Drugged Driving: 2016 Summary of Key Provisions of State Laws
