NHL Collective Bargaining Agreement
The NHL Collective Bargaining Agreement (CBA) is the basic contract between the National Hockey League (NHL; 32 team owners and NHL commissioner) and the NHL Players' Association (NHLPA), designed to be arrived at through the typical labour–management negotiations of collective bargaining. On January 6, 2013, an agreement was tentatively reached after a labour dispute cancelled 510 regular season games of the 2012–13 season, and was ratified by the league's Board of Governors on January 9, 2013, as well as by the NHLPA membership three days later on January 12, 2013.
Source: Wikipedia — NHL Collective Bargaining Agreement (CC BY-SA 4.0)