- The hole must be 4¼ inches (108 mm) in diameter and at least 4 inches (101.6 mm) deep. If a lining is used it must be at least 1 inch (25.4mm) below the putting green surface.
- The diameter of the ball must not be less than 1.68 inches (42.67mm) and the weight not greater than 1.62 ounces avoirdupois (45.93g) – it may be larger and lighter, but the player would obviously be playing at a disadvantage.
- The flagstick must be circular in cross-section - you can imagine the deflections that could occur with square sticks. However, it may have sections of varying diameters.
- A tee must not be longer than 4 inches (101.6mm).
- The teeing ground is a rectangular area two club-lengths in depth, the front and sides of which are defined by the outside limits of the two tee-markers.
- The overall length of the club must be at least 18 inches (0.457m) and, except for putters, must not exceed 48 inches (1.219m).
- The volume of the clubhead must not exceed 460 cubic centimetres (28.06 cubic inches), plus a tolerance of 10 cubic centimetres (0.61 cubic inches).
- When a ball is overhanging the lip of the hole a player is allowed enough time to reach the hole without unreasonable delay and an additional 10 seconds to determine whether the ball is at rest.
- A player must find or identify his ball within 5 minutes after the player’s side, or his or their caddies, have begun to search for it.
- A player must not start a round with more than 14 clubs. If a player starts with fewer than 14 clubs they may add any number, provided the total number does not exceed 14.
- There are 34 Rules of Golf with 126 sub-sections.
- There are over 1,200 Decisions on the Rules of Golf.
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