"The proposed Rule 14-1b would prohibit strokes made with the club or a hand gripping the club intentionally held directly against the player’s body, or with a forearm intentionally held against the body to establish an anchor point that indirectly anchors the club.
The proposed Rule would not alter current equipment standards and would allow the continued use of all conforming golf clubs, including belly-length and long putters, provided such clubs are used in a non-anchored manner. The Rule would target only a few types of strokes in which the club is anchored, while preserving the golfer’s ability to play a wide variety of strokes in his or her individual style.
The proposed Rule change would take effect on January 1, 2016, at the start of the next four-year cycle for revisions to the Rules of Golf. This timetable provides an extended period during which golfers currently using an anchored stroke may adapt their method of stroke, if necessary, to conform to the requirements of the new Rule."