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How to keep a deaf dog safe
Put a collar and tag on your dog.
A collar and tag can help you get your dog back if it accidentally gets loose. The tag should have the dog's name and your contact info on it, but it should also state that the dog is deaf.
Stating that the dog is deaf on the collar tag will allow anyone that finds your dog to better understand your dog and the situation. Having your dog microchipped with your contact information is a smart idea.