CDL endorsements are additional certifications that allow you to haul specialized freight. They're the fastest way to increase your pay without changing jobs. Here's what each one does and how much extra money you can expect.
Available Endorsements
H — Hazmat
What it covers: Transporting hazardous materials (chemicals, fuel, explosives, radioactive materials)
Requirements:
- Written knowledge test at the DMV
- TSA background check and fingerprinting ($86.50)
- Background check takes 4-6 weeks to process
- Must be a US citizen or lawful permanent resident
Pay boost: $5,000 - $15,000/year ($0.05 - $0.15 per mile premium)
Why get it: Hazmat is the single highest-paying endorsement. Combined with Tanker (X endorsement), it opens the most lucrative freight in trucking.
N — Tanker
What it covers: Driving tank vehicles carrying liquids or gases (fuel, chemicals, milk, water)
Requirements:
- Written knowledge test only (no background check)
- Added at the DMV same day
Pay boost: $3,000 - $8,000/year ($0.03 - $0.08 per mile premium)
Why get it: Combined with Hazmat to form the X endorsement, tanker is essential for fuel hauling — one of the steadiest freight markets.
X — Hazmat + Tanker Combined
What it covers: Both hazardous materials AND tank vehicles
Pay boost: $8,000 - $20,000/year (combined premiums)
Why get it: The X endorsement is the gold standard. Fuel tanker drivers are among the highest-paid in the industry with consistent, year-round demand.
T — Doubles/Triples
What it covers: Pulling double or triple trailers
Requirements: Written test only
Pay boost: $2,000 - $5,000/year
Why get it: Essential for LTL (less-than-truckload) carriers like FedEx Freight, XPO, and Old Dominion. These are often local/regional positions with good home time.
P — Passenger
What it covers: Vehicles designed to carry 16+ passengers
Requirements: Written test + skills test with a passenger vehicle
Pay boost: $3,000 - $7,000/year
Why get it: Opens bus driving positions (charter, transit, school). Good for drivers wanting local positions with set schedules.
S — School Bus
What it covers: School buses specifically
Requirements: Written test + skills test + additional state requirements
Pay boost: $2,000 - $5,000/year (seasonal)
Which Endorsements Should You Get?
Minimum recommendation: Get H (Hazmat) and N (Tanker) for the X combination. This opens the highest-paying jobs and costs less than $100 total.
Priority order:
- X (Hazmat + Tanker) — Biggest pay increase, most demand
- T (Doubles/Triples) — If you want LTL carrier positions
- P (Passenger) — If you want bus driving as a backup option
The ROI
Getting your Hazmat endorsement costs $86.50 (TSA fee) plus a few hours studying. If it adds just $5,000/year to your pay, that's a 5,800% return on investment in year one.
There's no reason not to get every endorsement available. Each one widens your job options and increases your earning potential.
List Your Endorsements on CDL Empire
When you create your driver profile on CDL Empire, make sure to list all your endorsements. Carriers filter by endorsements when searching for drivers — the more you have, the more visible you are.