The following Local Rule from the USGA and The R&A has been adopted for Challenge Cup, as follows:
Rules 18-2, 18-3 and 20-1 are modified as follows:
When a player's ball lies on the putting green, there is no penalty if the ball or ball-marker is accidentally moved by the player, her partner, her opponent, or any of their caddies or equipment.
The moved ball or ball-marker must be replaced as provided in Rules 18-2, 18-3 and 20-1.
This Local Rule applies only when the player's ball or ball-marker lies on the putting green and any movement is accidental.
Note: If it is determined that a player's ball on the putting green was moved as a result of wind, water or some other natural cause such as the effects of gravity, the ball must be played as it lies from its new location. A ball-marker moved in such circumstances is replaced.
The list below is a summary of certain procedures for Challenge Cup, including some changes for 2017. This list is NOT intended to replace the Book, and is just a summary of certain procedures. Please refer to the Book for details.