First, one has to have the potential Cerebellar Abiotrophy (CA) affected Scottish Terrier evaluated.
Evaluation can be done any board certified veterinary neurologist.
You will bring your dog to the neurologist for an evaluation. The neurologist will determine if the dog is showing signs of axatia that is consistent with CA.
You might want to bring videos of your dog exhibiting symptyms of consistent with CA while:
walking both toward and away
both climbing and descending steps
any other activities, you feel would be helpful in making the diagnosis
Second, you need to decide if you want the dog listed in the STCA CA registry.
Your neurologist must have determined that your dog is a probable CA affected animal. A simple letter with his/her name, title and address, stating that he/she has examined the specific named animal, has determined that the dog is ataxic and is most like caused by a genetic disorder and some notes on the observations.
There is no tracking of unaffected dogs. There is currently no tracking of other disorders.
Third, send in a registration document.
You are not required to send this information to the club. The STCA encourages you to do so.
To register a dog, you must agree/attest that (1) you are the current owner(s) of the dog, (2) you have had the dog examined, (3) the dog had a positive evaluation for CA, and (4) you are want to have this dog listed in the STCA open CA registry.
If there is more than one owner, all owners must agree/attest.
If the owners are not able to get physically together, one or more owners can fill out separate forms, with all the dog specific information including all of the owners name but only signing for themselves. The STCA HTF will correlate the information.