Immovable Obstructions Close to Putting Green
Rule 24-2 provides relief without penalty from interference by an immovable obstruction, but it also provides that, except on the putting green, intervention on the line of play is not, of itself, interference under this Rule.
However, on some courses, the aprons of the putting greens are so closely mown that players may wish to putt from just off the green. In these conditions, immovable obstructions (such as fixed sprinkler heads) on the apron may interfere with the proper playing of the game and the introduction of a Local Rule providing additional relief without penalty from intervention by an immovable obstruction would be warranted. For suggested wording for such a Local Rule, see Appendix I, Part B in the Rules of Golf.