I can provide some general guidance on this matter, but please remember that laws and regulations can vary by location, and they may have changed since then. It is always best to consult with a legal professional or service dog organization for the most up-to-date information applicable to your specific situation.
In many places, service dogs are legally required to wear some form of identification, such as a vest, patch, or harness that indicates they are working as a service animal. This identification helps signal to the public that the dog is on duty and not just a pet. However, it's essential to be aware that some service dog handlers may choose not to use visible identifiers for various reasons.
If you encounter someone with a service dog that doesn't have a vest on or any visible identification, it's generally best to assume they have a valid reason for not having the vest, rather than assuming the dog is a pet. Some handlers prefer not to use vests to avoid drawing attention to themselves or their disability, as they may face unwanted questions or interactions.
In such cases, it is not appropriate to ask someone to prove their dog's status as a service animal or request them to put on a vest. It's important to respect the handler's privacy and their right to use their service dog without drawing undue attention.
Instead, if you encounter a dog in public, always treat it as any other working service dog. Do not distract, pet, or attempt to interact with the dog without first seeking permission from the handler. Distractions or uninvited interactions can interfere with the dog's ability to focus on its job and may put the handler at risk.
Ultimately, the best course of action is to be respectful, understanding, and sensitive to the needs of service dog handlers. If you have concerns or questions about service animals, it's appropriate to contact the relevant authorities or service dog organizations in your area for guidance.