From the January 10, 2017 AKC Board Minutes:
Obedience Regulations
CHAPTER 20, NON-REGULAR CLASSES
Section 3. Wild Card Open.
The Wild Card Open class is for any dog capable of performing the Open exercises and that is eligible under the Obedience Regulations to compete in AKC events. No title is required to enter and handlers may enter more than one dog. Dogs in this class may be handled by the owner or any other person and may be entered in another class or classes. The Open exercises will be performed and judged as in the regular Open A class except that the minimum jump height a dog must jump is to be set at ½ the height of the dog at the withers, rounded to the nearest multiple of 2 inches. The actual height of the dog shall be rounded to the nearest multiple of 2 inches to determine the minimum jump height, with the exception of dogs eligible for the 4- and 18- inch jump heights. Dogs eligible for the 4-inch jump height must be 12 inches or less at the withers and all dogs over 34 inches are eligible for the 18- inch jump height. Handlers who choose to have their dogs jump more than the minimum required height will neither be penalized nor receive extra consideration. Additionally, verbal praise during the exercises is to be encouraged and not penalized. (Good, yes, nice, super, great and atta boy are some examples of praise that would be allowed.) Handlers may give additional commands but they will be penalized accordingly. Each handler may choose to select one exercise as a wild card. The exhibitor will have the option of performing the selected wild card exercise but will receive the full point value regardless of how the dog performs. When checking in, the handler must inform the steward or judge which exercise will be used as the wild card. The exercises will be performed in the same order as in the regular Open A class. The point values for the exercises, scoring and maximum total points are the same as in the regular Open class.
Section 4. Wild Card Utility.
The Wild Card Utility class is for any dog that is capable of performing the Utility exercises and that is eligible under the Obedience Regulations to compete in AKC events. No title is required to enter and handlers may enter more than one dog. Dogs in this class may be handled by the owner or any other person and may be entered in another class or classes. The Utility exercises will be performed and judged as in the regular Utility A class except that the minimum jump height a dog must jump is to be set at ½ the height of the dog at the withers, rounded to the nearest multiple of 2 inches. The actual height of the dog shall be rounded to the nearest multiple of 2 inches to determine the minimum jump height, with the exception of dogs eligible for the 4- and 18- inch jump heights. Dogs eligible for the 4-inch jump height must be 12 inches or less at the withers and all dogs over 34 inches are eligible for the 18- inch jump height. Handlers who choose to have their dogs jump more than the minimum required height will neither be penalized nor receive extra consideration.
Additionally, verbal praise during the exercises is to be encouraged and not penalized. (Good, yes, nice, super, great and atta boy are some examples of praise that would be allowed.) Handlers are allowed to praise their dogs during the performance of all Utility exercises except the signal exercise. Handlers may give additional commands but they will be penalized accordingly. Each handler may choose to select one exercise as a wild card. The exhibitor will have the option of performing the selected wild card exercise but will receive the full point value regardless of how the dog performs. When checking in, the handler must inform the steward or judge which exercise will be used as the wild card. The exercises will be performed in the same order as in the regular Utility A class. The point values for the exercises, scoring and maximum total points are the same as in the regular Utility class.