Meet the new rulebook, same as the old rulebook with one minor change. The NHL rulebook is hot off the presses!. NEW YORK, NY – NHL commissioner Gary Bettman today announced that the league will be releasing a Braille edition of the NHL rule book. National Hockey League (NHL) Officials Association. About NHLOA NHLOA News NHLOA Officials NHLOA Alumni Hall of Fame Rules Become A Ref Photo.