To get the tanker endorsement in Pennsylvania, bring a notarized DL-80CD application and $21.50 to any PennDOT Driver License Center, then pass the tank vehicles knowledge test on the spot. There’s no road test for the “N” endorsement, so most drivers who already hold a CDL finish the whole process in a single visit.1New York Codes, Rules and Regulations. Pennsylvania Consolidated Statutes Title 75 Section 1610 – Commercial Drivers License
Who Can Add the N Endorsement
You need a valid Pennsylvania CDL in Class A, B, or C before you can add N.2Commonwealth of Pennsylvania. License Types and Restrictions The minimum age for a Pennsylvania CDL is 18, which covers intrastate work only.3Pennsylvania General Assembly. Pennsylvania Consolidated Statutes Title 75 Chapter 16 – Commercial Drivers To cross state lines, federal rules require you to be 21.
Your Medical Examiner’s Certificate also needs to be current in PennDOT’s system. Almost all commercial drivers in non-excepted transportation have to keep this certificate on file, and if it lapses, PennDOT can downgrade your CDL.4Commonwealth of Pennsylvania. Self-Certification and Medical Examiners Certification Frequently Asked Questions Check the expiration date before you go.
One hurdle you can skip: Entry-Level Driver Training. Federal ELDT rules apply to first-time Class A or B applicants, Class B to Class A upgrades, and new passenger, school bus, or hazmat endorsements. The tanker endorsement isn’t on that list.5Federal Motor Carrier Safety Administration. Entry-Level Driver Training
The Right Form and the Fee
If you already hold a Pennsylvania CDL, use form DL-80CD to add the endorsement. The DL-31CD is the application for a commercial learner’s permit, and the form itself directs existing CDL holders to use the DL-80CD instead.6Pennsylvania Department of Transportation. Application for Commercial Learners Permit DL-31CD The DL-80CD has to be notarized, so take care of that before your visit.
If you don’t yet have a CDL and want the tanker endorsement on your learner’s permit, the DL-31CD is the form. It lists “N – Tanks” in the endorsements section. New permit applicants also submit a Self-Certification form (DL-11CD) stating whether they’ll drive in interstate or intrastate commerce.7Commonwealth of Pennsylvania. Documentation for CDL Drivers If you already have a CDL, you’ve already self-certified, though you may need to update that form if your driving category changes.
The endorsement upgrade fee is $21.50.8Pennsylvania Department of Transportation. Driver Licensing Fee Chart
What the Knowledge Test Covers
Only a knowledge test is required for N. Federal regulations specifically exempt tanker from the skills road test that passenger and school bus endorsements require.9eCFR. 49 CFR Section 383.93 – Endorsements Questions pull directly from Section 8 of PennDOT’s Commercial Driver’s Manual, so that chapter is your study guide.
The central topic is liquid surge: when a partially filled tank accelerates or brakes, the liquid sloshes and pushes the truck in the direction of the wave. The manual explains that surge is strongest in smooth-bore tanks, which have no internal structures to slow the liquid. Baffled tanks have internal walls with holes that reduce the wave’s force. Tanks divided by solid bulkheads create separate compartments that limit surge further but introduce uneven weight distribution when compartments are loaded to different levels.10Pennsylvania Department of Transportation. Commercial Drivers License Manual Section 8 – Tank Vehicles
Other test material includes a tanker’s high center of gravity and the rollover risk it creates on curves and ramps, safe following distances, controlled braking, and outage — the empty space left in a tank so liquid can expand as it warms. Different liquids expand at different rates, so the required outage varies by cargo.
At the Driver License Center
Walk in with your current CDL, the completed and notarized DL-80CD, and the $21.50 fee. Confirm your medical certification is current before you go. Staff will process the application, and you’ll take the knowledge test on-site. It’s multiple choice.
Pass, and PennDOT issues a camera card as temporary proof of your updated endorsement. Your permanent license, with the “N” code printed on it, arrives by mail in roughly 15 business days. Fail, and you can retake the test, though PennDOT may require a waiting period before your next attempt.
When You Also Need Hazmat: The X Endorsement
If you’ll haul hazardous liquids, N alone isn’t enough. You need both the N (tanker) and H (hazardous materials) endorsements, which Pennsylvania and every other state issue as a combined “X” code.1New York Codes, Rules and Regulations. Pennsylvania Consolidated Statutes Title 75 Section 1610 – Commercial Drivers License Fuel tanker drivers almost always need the X because petroleum products are hazardous materials.
Adding the hazmat side is a much bigger process than tanker alone:
- First-time hazmat applicants have to complete an approved ELDT theory course from a provider on the FMCSA’s Training Provider Registry before testing.5Federal Motor Carrier Safety Administration. Entry-Level Driver Training
- You submit fingerprints and go through a TSA security threat assessment. The fee is $85.25, and approval typically takes two to eight weeks.11Transportation Security Administration. HAZMAT Endorsement
- Pennsylvania charges an extra $15 on top of the standard endorsement fee for any CDL issued with an H or X endorsement.12Pennsylvania General Assembly. Pennsylvania Consolidated Statutes Title 75 Section 1617 – Fees
- The hazmat written exam is a separate test. You take both.
TSA clearance has to be renewed every five years, and the hazmat knowledge test has to be passed again at each CDL renewal. If you’re unsure which you need, ask your employer. Plenty of tanker jobs haul milk, water, or liquid food products, and those only need the N.
When the N Endorsement Is Required
Federal regulations define a tank vehicle as any commercial motor vehicle designed to carry liquid or gaseous materials in a tank with an individual rated capacity over 119 gallons and a combined capacity of 1,000 gallons or more.13GovInfo. 49 CFR Section 383.5 – Definitions That applies whether the tank is permanently welded to the chassis or temporarily secured to a flatbed, including portable tanks and intermediate bulk containers strapped onto a trailer.
What’s inside doesn’t matter for the endorsement rule — water, milk, fuel oil, and industrial chemicals all trigger it once the capacity thresholds are met. Empty storage containers that aren’t designed for transport don’t count even if they hold over 1,000 gallons, and tanks documented as containing only residue aren’t treated as loaded tank vehicles.
Driving a Tanker Without the Endorsement
Operating a tank vehicle without the N on your CDL means driving outside your license class. Law enforcement and DOT inspectors treat it as a serious violation: expect a citation, and the officer or inspector may place the vehicle out of service until a properly endorsed driver arrives. Your employer can face penalties too. The violation goes on your driving record and can affect your CSA score, which follows you to every future carrier.