Dogs that demonstrate the previously mentioned basic skills, as well as walking reasonably well on a leash and a few other minor tasks, can be tested for and earn the American Kennel Club's (AKC) Canine Good Citizen certification. While not a competitive obedience title, a CGC certification demonstrates that the dog is sociable, well behaved, and reliable in public settings. Some insurance companies will waive breed restrictions on dogs with CGCs, and many states have passed resolutions supporting and encouraging CGC certification as a yardstick for canine manners and responsible dog ownership.
A training class is not there to train your dog. Its purpose is to teach you to train your dog so you will need to be committed to train your dog for short sessions (5 minutes) several times a day rather than just simply turn up for classes! This little bit of training everyday will be repaid with a lifetime of living with a well behaved dog. You will also learn to avoid problems before they begin as well as receive help to overcome any that you already have with your dog.