16-1. General

a. Touching Line of Putt

The line of putt must not be touched except:

1. the player may move sand and loose soil on the putting green and other loose impediments by picking them up or by brushing them aside with his hand or a club without pressing anything down;
2. in addressing the ball, the player may place the club in front of the ball without pressing anything down.
3. in measuring — Rule 10-4;
4. in lifting the ball — Rule 16-1b;
5. in pressing down a ball-marker;
6. in repairing old hole plugs or ball marks on the putting green — Rule 16-1c; and
7. in removing movable obstructions — Rule 24-1.

(Indicating line for putting on putting green — see Rule 8-2b.)

b. Lifting Ball

A ball on the putting green may be lifted and, if desired, cleaned. A ball so lifted shall be replaced on the spot from which it was lifted.

c. Repair of Hole Plugs, Ball Marks and Other Damage

The player may repair an old hole plug or damage to the putting green caused by the impact of a ball, whether or not the player’s ball lies on the putting green. If a ball or ball-marker is accidentally moved in the process of such repair, the ball or ball-marker shall be replaced, without penalty. Any other damage to the putting green shall not be repaired if it might assist the player in his subsequent play of the hole.

d. Testing Surface

During the play of a hole, a player shall not test the surface of the putting green by rolling a ball or roughening or scraping the surface.

e. Standing Astride or on Line of Putt

The player shall not make a stroke on the putting green from a stance astride, or with either foot touching, the line of putt or an extension of that line behind the ball.

f. Playing Stroke While Another Ball in Motion

The player shall not play a stroke while another ball is in motion after a stroke from the putting green, except that, if a player does so, he incurs no penalty if it was his turn to play.

(Lifting ball interfering with or assisting play while another ball in motion — see Rule 22.)

(Position of caddie or partner — see Rule 14-2.)

(Wrong putting green — see Rule 25-3)

16-2. Ball Overhanging Hole

When any part of the ball overhangs the lip of the hole, the player is allowed enough time to reach the hole without unreasonable delay and an additional ten seconds to determine whether the ball is at rest. If by then the ball has not fallen into the hole, it is deemed to be at rest. If the ball subsequently falls into the hole, the player is deemed to have holed out with his last stroke, and he shall add a penalty stroke to his score for the hole; otherwise there is no penalty under this Rule.

(Undue delay — see Rule 6-7.)