Be sure to check out our article On the Consequences of Fake and Undertrained Service Dogs. Certification does not mean an individual dog is a service dog. Neither does registration or an official looking ID. There are several businesses selling fake certification, registration and IDs over the internet. All a person need do to get these products is pay a fee.
Mrs (pronounced like the word misses) is for married women, Ms (pronounced mizz) is for any woman, and Miss is for children. In a formal context, if a woman is married but uses her maiden last name, you must use Ms.. If a woman is married and is being referred to using her husband's first name (Mrs. In speech, using titles is rare, except in settings like school, where the teacher will provide her title for you. For example, if she says to call her Mrs. Smith, that's what you call her.
Mrs was most often used by a woman when married, in conjunction with her husband's first and last names (e.g., Mrs John Smith). A widow was and still is addressed with the same title as when she was married.