Since the UPoR barely covers the Charlotte Checkers, you have to look elsewhere for detailed coverage of the American Hockey League, in which the current-edition Checkers play. The AHL is moving towards adding a fourth official — a second referee to go along with two linesmen — to police all of its games. For now though, the league only has enough referees to have two at a fraction of its games but it does plan to have four officials at all playoff games. A Harrisburg Patriot-News story explains it all.