All defined terms are in italics and are listed alphabetically in the Definitions section - see pages 2235.
The ball must be played as it lies, except as otherwise provided in the Rules.
(Ball at rest moved - see Rule 18)
A player must not improve or allow to be improved:
by any of the following actions:
However, the player incurs no penalty if the action occurs:
Except as provided in the Rules, before making a stroke at a ball that is in a hazard (whether a bunker or a water hazard) or that, having been lifted from a hazard, may be dropped or placed in the hazard, the player must not:
1. Provided nothing is done that constitutes testing the condition of the hazard or improves the lie of the ball, there is no penalty if the player (a) touches the ground or loose impediments in any hazard or water in a water hazard as a result of or to prevent falling, in removing an obstruction, in measuring or in marking the position of, retrieving, lifting, placing or replacing a ball under any Rule or (b) places his clubs in a hazard.
2. At any time, the player may smooth sand or soil in a hazard provided this is for the sole purpose of caring for the course and nothing is done to breach Rule 13-2 with respect to his next stroke. If a ball played from a hazard is outside the hazard after the stroke, the player may smooth sand or soil in the hazard without restriction.
Note: At any time, including at address or in the backward movement for the stroke, the player may touch, with a club or otherwise, any obstruction, any construction declared by the Committee to be an integral part of the course or any grass, bush, tree or other growing thing.
Match play - Loss of hole; Stroke play - Two strokes.
(Searching for ball - see Rule 12-1)
(Relief for ball in water hazard - see Rule 26)