7 Endorsements
1 Written test each
HZ Requires TSA background check

Not all endorsements apply to every CDL class. Use the CDL Selector to find what you need.

HZ
⚠️ CDL HazMat (H) Endorsement: Federally Required

Pennsylvania Hazardous Materials Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), required to transport any quantity of hazardous materials that require placarding under federal HazMat regulations.

What to Study for the PA Test

For the Pennsylvania (PA) 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 Pennsylvania (PA)

  • Steel and metals: roofing, coatings, and compressed-gas deliveries to job sites
  • Pharmaceutical and healthcare distribution: chemical and pharmaceutical shipments that require placards
  • Food processing: cleaning agents, batteries, and other placarded retail freight
  • Energy and natural gas: fuel, propane, and oilfield chemical deliveries that require placards (X endorsement with Tank)
TK
🛢️ CDL Tank (N) Endorsement: Common Add-on

Pennsylvania Tank Vehicles Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), 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 PA Test

For the Pennsylvania (PA) Tank Vehicles test, study liquid surge and baffled tanks, outage allowances, inspections, high-center-of-gravity handling, and rollover prevention strategies.

Tank Vehicles in Pennsylvania (PA)

  • Pharmaceutical and healthcare distribution: bulk chemical tankers between plants
  • Food processing: beverage, dairy, and food-grade liquid tankers
  • Energy and natural gas: crude, condensate, and fuel tankers serving the oil and gas fields
PS
🚌 CDL Passenger (P) Endorsement

Pennsylvania Passenger Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), 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 PA Test

For the Pennsylvania (PA) Passenger test, study passenger safety protocols, controlled loading and unloading, emergency door operation, on-road passenger management, and distracted-driving rules.

Passenger in Pennsylvania (PA)

  • Transit agencies, charter companies, and church or community buses across Pennsylvania
SB
🚐 CDL School Bus (S) Endorsement

Pennsylvania School Bus Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), 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 PA Test

For the Pennsylvania (PA) 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 Pennsylvania (PA)

  • Pennsylvania school districts and their contractors: every route driver needs S plus P
  • Activity and athletics trips, which use the same S-endorsed drivers
DT
🚚 CDL Doubles/Triples (T) Endorsement

Pennsylvania Doubles & Triples Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), 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 PA Test

For the Pennsylvania (PA) 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 Pennsylvania (PA)

  • Food processing: twin 28-foot LTL trailer sets on the interstates
AB
🛑 CDL Air Brakes Test: Most Drivers Need It

Pennsylvania Air Brakes Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), 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 PA Test

For the Pennsylvania (PA) 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 Pennsylvania (PA)

  • Steel and metals: dump trucks, mixers, and flatbed tractors on construction routes
  • Energy and natural gas: nearly every oilfield truck runs air brakes
  • Almost every Class A and Class B vehicle in Pennsylvania; skip this test and your CDL carries an L restriction
CV
🚛 CDL Combination Vehicles Test: Class A Essential

Pennsylvania Combination Vehicles Endorsement

When It's Required in Pennsylvania

In Pennsylvania (PA), essential for Class A drivers operating tractor-trailers, lowboys, and other multi-unit combinations over federal weight thresholds.

What to Study for the PA Test

For the Pennsylvania (PA) Combination Vehicles test, study coupling and uncoupling procedures, air line connections, trailer handling characteristics, off-tracking, and full combination vehicle inspections.

Combination Vehicles in Pennsylvania (PA)

  • Steel and metals: flatbed and step-deck loads of steel, lumber, and building materials
  • Food processing: regional and over-the-road tractor-trailer distribution runs
  • Energy and natural gas: tractor-trailer rigs hauling pipe, rig equipment, and frac sand
  • Required for any Class A CDL issued in Pennsylvania

Next steps

Not sure which Pennsylvania CDL endorsements you need?

Answer a few questions about your vehicle and operation, and the Pennsylvania CDL Selector Tool pinpoints the endorsements you need in Pennsylvania.

Use the PA CDL Selector Tool →