These titles can be won at American Kennel Club approved obedience trials.
CD: Companion Dog
Basic off-lead control
CDX: Companion Dog Excellent
Intermediate level with retrieving and jumping
UD: Utility Dog
Most difficult obedience work, with hand signals and scent exercises.
UDX: Utility Dog Excellent
Ten combined qualifying scores earned from the Open B and Utility B classes.
TD: Tracking Dog
Dog follows a stranger's scent about 500 yards to find an article at the end. The track is 1/2 to 2 hours old.
TDX: Tracking Dog Excellent
Again, dog follows a stranger's scent, on a track 1000 yards long, to find three articles. Track is not less than three hours old.
OTCH: Obedience Trial Champion
Dogs that have already won the UD title may begin to compete for championship points 100 points are required for championship. This is incredibly difficult. For instance, at a recent trial there were 20 dogs in Utility B, of which six were already OTCH. If your dog won first in this class, he would win 14 points. Most OTCH dogs seem to be about five years old and have been at class three to five times a week since they were a year old, with additional home practice and shows.