In the United States, there are over 500,000 service dogs working to make lives better for their handlers. Without service dogs, many people with disabilities and handicaps would not be able to perform tasks that are essential to day-to-day living.
The Americans with Disabilities Act (ADA) establishes that service dogs can work with their handlers in public places such as restaurants and stores, places where emotional support animals (ESA) and pets are not permitted.
Restaurant and store owners can ask if your dog performs a specific task and can ask about the nature of the task, but they cannot ask you about your disability or ask you to have your dog perform that task. There is no specific documentation or licensing required of a service dog, but the simplest way to establish your dog’s credibility is to purchase a vest for him to wear while he is working.