The prohibition on two-line passes from behind a team's blue line to the other side of the red line was also lifted.
Another significant change is the elimination of the two-line pass, a wrinkle that will allow longer passes on the attack.
"Playing college, I'm kind of used to it," York said, referring to the two-line pass.
Ferreira tipped the puck back to Green, which negated what could have been a two-line pass.
Recognition of penalties, off-sides, and icing are all optional, but two-line pass is not considered.
The IIHF decided to test a new rule in 1997 that would allow two-line passes.
Some of them were already used by the IIHF, such as the shootout and making the two-line pass legal.
This can mean a two-line pass, a pass that crosses two lines marked on the ice for such purposes.
And they should legalize the two-line pass over center ice, increasing options for playmaking.
The center red line will be ignored for purposes of the two-line pass.