Purchase online - This is the fastest and easiest option. Tag Number:​​ Registration for an assistance dog shall be permanent and not subject to annual renewal so long as the dog is an assistance dog.Learn about Service Agreements and see examples for your pet sitting or dog walking business. Create a professional pet care service agreement. (2) "Adult" means an individual who is eighteen years of age or older. You may not require the animal to wear an identifying vest or tag; You may not ask that the dog demonstrate its ability to perform the task or work. Other than the net interest expense resulting from these agreements, no amounts are recorded in the financial statements.