Ball at Rest Accidentally Moves
- Accidentally moving your ball while searching for it: There is no longer a penalty.
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- Accidentally moving your ball or ball-marker when it is on the putting green: There is no longer a penalty.
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- New standard for deciding if you caused your ball to move: You will be found to have caused your ball to move only if that is known or virtually certain (that is, it is at least 95% likely that you were the cause).
Replacing a Moved or Lifted Ball
- New procedure when you don’t know the exact spot where your ball was at rest: You must replace the ball on its estimated original spot (rather than drop the ball at that spot); and if the estimated spot was on, under or against growing, attached or fixed objects (such as grass), you must replace the ball on, under or against those objects.
Ball in Motion Accidentally Deflected
- Your ball in motion accidentally hits you, your equipment, your caddie, someone attending the flagstick for you or a removed or attended flagstick: There is no longer a penalty (such as when your ball bounces off a bunker face and hits you).
Ball is Struck More Than Once
- Accidentally hitting your ball more than once during a stroke: There is no longer a penalty.
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https://www.rules.golf/en/when-things-happen-to-your-ball-in-play
