There are three types of service or assistance dogs. The categories are guide dog, hearing dog, and service dog.
Guide dogs help blind and visually impaired individuals navigate the environment.
Hearing dogs help alert deaf and hard-of-hearing individuals to important sounds.
Service dogs assist individuals with a disability other than those related to vision or hearing. This includes dogs trained to work with people who use wheelchairs, have balance issues, have autism, need seizure alert or response, need to be alerted to other medical issues like low blood sugar, or have psychiatric disabilities.
Please visit: Alaska Service Dogs