A Service Dog ID badge gives your service dog instant credibility by clearly stating that your dog is a service dog. A Service Dog ID badges can dramatically speed up your process of getting through airport security, entering stores etc. without arguments or confrontations. A Service Dog ID badge gives your service dog instant credibility by clearly stating that your dog is a service dog. A Service Dog ID badges can dramatically speed up your process of getting through airport security, entering stores etc. without arguments or confrontations.