Per 'scoutingtherefs'Not supposed to allow hitting but there was some in the Toronto NY game some dandy’s actually that no penalty was called.
The PWHL has also opted to allow a certain degree of physicality in the game, including – in certain situations – body checking. From Rule 52:
In the PWHL “bodychecking” is allowed when there is a clear intention of playing the puck or attempting to “gain possession” of the puck with the exception from the situation described in this rule.
If two (2) players are in pursuit of the puck, they are reasonably allowed to push and lean into each other provided that “possession of the puck” remains the sole object of the two (2) players.
If two (2) or more players are competing for “possession of the puck”, they are not allowed to use the boards to make contact with an opponent to eliminate her from the play, push her into the boards, or pin her along the boards.