A full copy of the 2014-2019 collective agreement is available here: the collective agreement for HSA members who are nurses is negotiated between employers and the Nurses Bargaining Association, which represents nurses belonging to the Health Sciences Association and the BC Nurses Union. The BCNU is the largest union in the NBA. At present, about 900 HSA members are covered by this agreement. . Nurses` 16th Master and Component Agreements (PDF, 2.04MB) See latest Crown Counsel Letter of Understanding #13 (PDF, 1.43MB) The latest terms agreed between the province and the B.C. Government and Service Employees` Union (BCGEU): The relevant collective agreements for the BC Public Service:. .