If a ball to be lifted is to be replaced, its position must be
marked.
When dropping, stand erect, hold the ball at shoulder height
and arm's length and drop it. A ball to be dropped in a hazard
must be dropped, and stay, in the hazard.
If a dropped ball strikes the player or his partner, caddie or
equipment, it must be re-dropped without penalty.
A dropped ball must be re-dropped if it rolls into a hazard,
out of a hazard, onto a putting green, out of bounds or to a
position where there is interference by the condition from
which relief is taken (in case of immovable obstructions,
abnormal ground conditions, embedded ball) or comes to rest
more than two club-lengths from where it first struck a part
of the course or nearer the hole than its original position or
other reference point. If the ball when re-dropped rolls into
any position listed above, place it where it first struck a
part of the course when re-dropped.
If the original lie of a ball to be replaced has been altered,
place it in the nearest similar lie within one club-length not
nearer the hole, ecxept in a bunker recreate the original lie
and place it in that lie.