Per Chapter 6.08 of the Bainbridge Island Municipal Code, owners of dogs must obtain a license (cat licensing is optional). If your animal is spayed or neutered, the cost is $6 for lifetime tag. For animals who are not spayed or neutered, the fee is $25 per year. Among other locations in the county, animal licenses can be processed at the Bainbridge Island Police Station, the Day Road Animal Hospital, and the Humane Society in Silverdale.