Service dog on MAX

Service Animals on TriMet

Your service animal is welcome on TriMet. No permit is required, but you may be asked to confirm that your animal is a service animal. You are responsible for the care and supervision of your animal while on board.

Photo of rider boarding the bus with a service animalIf you are planning on bringing your service animal on a bus or train, please follow these guidelines:

  • Your animal must be on a leash or in a closed carrier, remain under your control and behave appropriately.
  • The animal must remain at your feet or on your lap. The animal may not sit on a vehicle seat.
  • The animal must not be aggressive toward people or other animals.
  • The animal must be housebroken.
  • You are responsible for any damage or soiling caused by the animal.

If you have any questions about bringing your service animal on TriMet, please call us at 503-962-2455 or email

Please note:

We recently updated our Code regarding “service animals” (TriMet Code Section 28.10 (R). In accordance with the U.S. Department of Transportation regulations, “service animal” means any guide dog, signal dog or other animal individually trained to work or perform tasks for an individual with a disability, including, but not limited to, guiding individuals with impaired vision, alerting individuals with impaired hearing to intruders and sounds, pulling a wheelchair, or fetching dropped items.

An animal which solely provides emotional support, well-being, comfort or companionship is not a service animal. These types of animals, “companion animals,” are considered pets are allowed to be transported pursuant to our Code (28.15(A)(6)).


Service animal definition from TriMet Code Chapter 28: Regulations Governing Conduct on District Property PDF

TriMet Administrative Rules for the Transport of Non-Canine Service Animals PDF

Learn more