Rules for Your Service Animal
Under the ADA, a public accommodation may not ask you questions about your disability or demand to see certification, identification, or other proof of your animal’s training or status. If it is not apparent what your service animal does, the establishment may ask you only whether it is a service animal, and what tasks it performs for you. Washington law states that signal dogs (those that assist deaf or hard of hearing people) must wear an identifying orange collar.
The ADA and Washington law prohibit public accommodations from charging a special admission fee or requiring you to pay any other extra cost to have your service animal with you. However, you may have to pay for any damage your animal causes.
The ADA allows a public accommodation to exclude your service animal if it poses a direct threat to health and safety (or example, if your dog is aggressively barking and snapping at other customers, the facility can kick the dog out). Your animal may also be excluded if it is not housebroken, or if it is out of control and you are unable or unwilling to effectively control it.