We recommend: K9King Service Dog Tag
While we are still on the topic of how to help with identification of your service dog, you should consider getting an ID tag. These are different from service dog ID badges in a lot of ways.
One way is that they are designed to be attached to dog collars. This is definitely more convenient especially if your dog harness does not have pockets or a saddle for you to store the ID badges.
It is also less bulky for the dog than options like bandanas especially if you are working with a small breed dog. With larger dog breeds, both ID tags and bandanas are worth considering.
Service dog ID tags usually contain important information engraved onto the tag including the dog’s name, their home address, or emergency contacts. They also usually have a marker that indicates that the dog is a service dog.