Current Collective Bargaining Agreement (2021 - 2022) Old Collective Bargaining Agreement (2020 - 2021) Old Collective Bargaining Agreement (2016 - 2020) Old Collective Bargaining Agreement (2014 - 2016) Old Collective Bargaining Agreement (2006 - 2014) Memorandum of Understanding 2008 Memorandum of Understanding October 2010