It’s thankfully rare, but it’s been around pro hockey for at least 20 years. I recall seeing a call for it in an IHL game in 2000-01, and Wikipedia says it was added to the NHL book in 2002. 

John 

Sent from my iPhone

> On Feb 13, 2022, at 12:26 AM, David Parter <[log in to unmask]> wrote:
> 
> 
> I am not sure when it was first added to the NCAA rule book, but it is there (in youth hockey, it is part of the tripping rule. In the NHL it is a separate rule):
> 
>> Rule 44 - Clipping
>> 44.1 Clipping - A player shall not deliver a check at or below the opponent’s
>> knees. Clipping includes all cases in which an attempt to clip is made,
>> regardless of whether contact occurs.
>> PENALTY—Minor or major at the discretion of the referee. A game
>> misconduct or disqualification may be assessed at the
>> discretion of the referee.
> 
> As you can imagine, it is quite dangerous.
> 
>   --david
> 
>> On 2/12/22 19:27, Carol White wrote:
>> There were three Five minute Major penalties in the last five minutes of the game. 
>> 
>> Two were for Face masks and the last was a "Clipping" call. WTH??
>> 
>> Since when is there a Clipping penalty in HOCKEY??
>> 
>> Minnesota Sweeps Ohio State.
>> 
>> Thank you!
>> Carol,QoGH
>