ADA states that is fraud to imply or falsely use this federal law to pass off a pet as qualified per the ADA law. ADA indicates that the law is to allow access to people with disabilities and it is fraud to fake the use. It is like pretending to impersonate a federal or state official.
There are a couple states who are certifying service dogs mostly with the idea of controlling access to their state buildings. It supposedly came about do to people with pets claiming their dogs were service dogs.
The fact that there is no mechanism in the law to actually certify, as you mentioned, more of the service dog training facilities are giving letters of "reference" with pictures of the handler and dog that they can carry with them.
One time when my dog and I were traveling the clerk The airline desk did not believe that my small dog was actually a hearing dog - sshe knew ASL sign language and was stunned when my dog dropped to a "down" when she gave the lay down sign. She later told me she had a younger deaf brother.
They cannot ask you what you what your disability is but they can request that you relate what specific duty the dog performs for you in their setting.
__________________ .  Cali  , and Cali's keeper and staff, Jay No, not a "mini" Yorkie - She loves to motor in her Mini Cooper car |