Drivers are required to permit any customer with a service animal to ride King County Metro buses. This includes animals-in-training accompanied by a trainer or person with a disability.

Service animals for persons with disabilities ride for free. No permit is required, but the driver may ask if your animal is a service animal to determine if a fare is appropriate.

Service animals must remain on the floor without blocking the aisle or on their owner's lap. If this is not an option, the service animal may occupy a seat provided one is available.