- Current Collective Bargaining Agreement (2024-2026).
- Old Collective Bargaining Agreement (2023 – 2024)
- Old 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 2010
