When you have a service dog you may find that you get quite a bit of hassle from people when you are out with them. Some places can give you more problems than others, such as restaurants, meat markets, crowded places and high-end retail stores. Even though there are laws that protect you and your right to keep your service dog with you, there are still a surprising number of employees and even people who run businesses that don't have a full understanding of the laws that protect you. For example, they may not know that they are not allowed to ask you why you need a service dog. Or, they may think that since there is open food displayed that your service dog must leave, which is not true.
You can have your service dog registered, so you can be better prepared to deal with people who want to give you grief when you come into a place with your dog and they don't feel that you have the right to be there.
Registering your dog gives you an actual paper trail and proof for nay-sayers
When you complete your service dog registration, you will be given a packet that shows who they are and explains the laws to those who doubt or question your right to bring your service dog with you wherever you go, including inside of their business. Some people are the type that needs to see something in writing before they believe it. When you register your dog you will be given cards that educate the public on the laws so they know better than to harass or question you. You will generally be given enough cards so you can allow some people to keep them if you think them maintaining the card will make things easier on you in the future, as well as anyone else in the future who comes in their business with a service dog of their own.
Registering your dog can make traveling easier
If you use certain modes of transportation like the bus, the train or even the plane you want to be able to get on without any problems. Since so many people try to travel with their pets and claim that they are indeed a service dog, people have grown skeptical. You are only required to answer two questions and those are, "If your dog is a service dog that helps you with a disability and what tasks they are trained to do." However, you'll find if you can simply hand someone a card or point them to your dogs registered tag, then you can even avoid all lined of questioning and you can get on with your travels faster.