Special endorsements

There are 6 commercial endorsements and 1 restriction for commercial driver licenses (CDLs). Each endorsement or restriction requires the commercial driver to pass specific tests.

Endorsement or restriction Description
Passenger endorsement (P) All passenger endorsements are connected to a vehicle class (Class B or C), depending on the weight of the vehicle:
  • A Class B passenger endorsement (B/P1) is required to operate vehicles designed to carry 16 or more persons (including the driver), and weighing 26,001 lbs. or more.
  • A Class C passenger endorsement (C/P2) is required to operate vehicles designed to carry 16 or more persons (including the driver), and weighing 26,000 lbs. or less.
School bus endorsement (S) Required for drivers who operate school buses to transport students to or from school and for school sponsored events.
  • A passenger endorsement (P) is also required for a school bus endorsement to be valid.
 
All school bus endorsements are connected to a vehicle class (Class B or C):
  • A Class B school bus endorsement (B/P1/S) is required to operate a school bus weighing 26,001 lbs. or more.
  • A Class C school bus endorsement (C/P2/S) is required to operate a school bus weighing 26,000 lbs. or less.
Double/triple trailers endorsement (T) Required for drivers pulling sets of double or triple trailers.
Tank vehicle endorsement (N) Required for drivers of vehicles carrying liquids or liquid gases in portable or fixed tanks. This endorsement isn’t required for portable tanks with a rated capacity under 1,000 gallons.
Hazardous materials endorsement (H) Required for drivers of vehicles carrying the types of hazardous materials that require the vehicle to be classified or placarded for hazardous materials. This endorsement requires drivers to be fingerprinted and undergo a federal background check the first time they get an HME, or when they renew or transfer a license from another state.
Combination endorsement (X) This is a combination of a tank and hazardous materials endorsement.
Air brake restriction (K) This is an automatic restriction. If a driver has successfully passed the necessary written and driving tests for air brake equipped vehicles, this endorsement will be removed. Drivers who don’t pass these tests are restricted on the CDL to non-air brake vehicles.

See also:

Washington Healthcare Finder
Access Washington