Louisiana CDL Endorsements
Endorsements are add-ons to your Louisiana CDL that authorize specific vehicle types or cargo. Each requires a separate knowledge test, taken through Louisiana Office of Motor Vehicles, and the endorsement codes are federal, so a Louisiana endorsement is recognized in every state. With petrochemical and tanker transport, port and marine freight, natural gas and pipeline shaping Louisiana freight, the examples under each endorsement show where that endorsement pays off locally.
Not all endorsements apply to every CDL class. Use the CDL Selector to find what you need.
When It's Required in Louisiana
In Louisiana (LA), required to transport any quantity of hazardous materials that require placarding under federal HazMat regulations.
What to Study for the LA Test
For the Louisiana (LA) Hazardous Materials test, study shipping papers, placard and label selection, safe loading and segregation, emergency response procedures, and security-awareness requirements under federal law.
Hazardous Materials in Louisiana (LA)
- Petrochemical and tanker transport: fuel, propane, and oilfield chemical deliveries that require placards (X endorsement with Tank)
- Port and marine freight: placarded containers and ISO tanks coming through the ports
When It's Required in Louisiana
In Louisiana (LA), required for vehicles designed to transport liquids or gases in a tank permanently or temporarily attached to the vehicle, with individual tank capacity of more than 119 gallons.
What to Study for the LA Test
For the Louisiana (LA) Tank Vehicles test, study liquid surge and baffled tanks, outage allowances, inspections, high-center-of-gravity handling, and rollover prevention strategies.
Tank Vehicles in Louisiana (LA)
- Petrochemical and tanker transport: crude, condensate, and fuel tankers serving the oil and gas fields
- Port and marine freight: ISO tank containers of chemicals and food-grade liquids
- Agriculture and seafood: juice, wine, and liquid food tankers where the crop calls for it
When It's Required in Louisiana
In Louisiana (LA), required for commercial vehicles designed to carry 16 or more passengers including the driver: charter buses, transit coaches, and similar vehicles.
What to Study for the LA Test
For the Louisiana (LA) Passenger test, study passenger safety protocols, controlled loading and unloading, emergency door operation, on-road passenger management, and distracted-driving rules.
Passenger in Louisiana (LA)
- Agriculture and seafood: farm labor crew buses carrying 16 or more workers
- Transit agencies, charter companies, and church or community buses across Louisiana
When It's Required in Louisiana
In Louisiana (LA), required for any driver transporting school-age students in a vehicle classified as a school bus under federal or state law.
What to Study for the LA Test
For the Louisiana (LA) School Bus test, study student loading zones, stop-signal arm procedures, railroad crossing rules, mirror adjustment, emergency evacuation drills, and state-specific school bus regulations.
School Bus in Louisiana (LA)
- Louisiana school districts and their contractors: every route driver needs S plus P
- Activity and athletics trips, which use the same S-endorsed drivers
When It's Required in Louisiana
In Louisiana (LA), required to pull double or triple trailers where permitted by state law. Common in regional and long-haul freight operations.
What to Study for the LA Test
For the Louisiana (LA) Doubles & Triples test, study coupling and uncoupling double and triple combinations, pull-out stability, off-tracking behavior, full combination inspections, and safe following distance.
Doubles & Triples in Louisiana (LA)
- Port and marine freight: twin-trailer LTL sets running the port and rail corridors
When It's Required in Louisiana
In Louisiana (LA), required for any vehicle equipped with an air brake system, which covers most Class A tractor-trailers and many Class B straight trucks.
What to Study for the LA Test
For the Louisiana (LA) Air Brakes test, study air brake components, dual-circuit systems, inspection procedures, warning devices, pressure gauges, and stopping distance at highway speeds.
Air Brakes in Louisiana (LA)
- Petrochemical and tanker transport: nearly every oilfield truck runs air brakes
- Almost every Class A and Class B vehicle in Louisiana; skip this test and your CDL carries an L restriction
When It's Required in Louisiana
In Louisiana (LA), essential for Class A drivers operating tractor-trailers, lowboys, and other multi-unit combinations over federal weight thresholds.
What to Study for the LA Test
For the Louisiana (LA) Combination Vehicles test, study coupling and uncoupling procedures, air line connections, trailer handling characteristics, off-tracking, and full combination vehicle inspections.
Combination Vehicles in Louisiana (LA)
- Petrochemical and tanker transport: tractor-trailer rigs hauling pipe, rig equipment, and frac sand
- Port and marine freight: container drayage between the ports, rail ramps, and warehouses
- Agriculture and seafood: refrigerated produce loads to distribution centers and out of state
- Required for any Class A CDL issued in Louisiana
Not sure which Louisiana CDL endorsements you need?
Answer a few questions about your vehicle and operation, and the Louisiana CDL Selector Tool pinpoints the endorsements you need in Louisiana.