I was actually considering starting a thread about this.
I'm an assistant coach with a Bantam CC team from a Montreal suburb. The way the rule was explained to us by the head referee from our association is that any intentional contact to the head was an automatic 4 minute penalty. Any accidental contact with the head is a 2 minute penalty.
Intentional contact, which is a 4 minute penalty, includes things such as facewashes, punches, etc.
In about 5 exhibition games so far this season, the calls have been all-over the place. We had 1 game where it wasn't called once, another where it was called pretty often, and then a game last night where almost every single body contact was called a hit to the head penalty. It was BEYOND ridiculous. We spent about 2/3's of the game on the penalty kill.
Now, we are a very physical team, but we probably only deserved 2-3 of those penalties. One player had 14 penalty minutes on his own. The other team received a lot of questionable ones as well.
Example, our defenseman has the puck in our zone. A smaller kid skates towards him to try and hit him, so our defenseman lowers his shoulder and leans into him, knocking him over. 4 minute hit to the head penalty. Another example, our forward has the puck in their corner, battling a player. Another one of their players comes in to hit him, our forward, while controlling the puck, knocks the other kid over: 4 minute hit to the head penalty. Are they supposed to stand there and let the opposing player hit them?
Hopefully this was just a referee who never ref'ed full contact before, because if this is the new standard then we might as well eliminate contact all together, which is unfortunately what I think will eventually happen.