Durham College is one of 24 publicly funded colleges in Ontario, all regulated under the Ontario Colleges of Applied Arts and Technology (CAAT) Act. Because they fall under the same legislation, unionized employee groups across these colleges are represented by common collective agreements. The College Employer Council (CEC) serves as the government-mandated bargaining agent for Ontario’s colleges, negotiating collective agreements on their behalf. The Ontario Public Service Employees Union (OPSEU) represents the employee groups covered by these agreements. While collective agreements differ by bargaining unit in length, terms, and conditions, all are negotiated in accordance with the Ontario Labour Relations Act. Below summarizes the unionized employee groups: CAAT-A:Full-Time Academic Employees Full-time and partial-load instructors, professors, librarians, and counsellors. The current collective agreement expires on September 30, 2027. CAAT-FTSS:Full-Time Support Staff Examples of members in this group include technicians and technologists, clerks, assistants, analysts, and facilities operators. The current collective agreement expired on August 31, 2025. To: The current collective agreement expires on August 31, 2028. CAAT-PTSS:Part-Time Support Staff Individuals who regularly work 24 hours per week or less in positions or classifications such as office, clerical, technical, building maintenance and service, and shipping and receiving. The current collective agreement expired on January 31, 2024. CAAT-A PT/SL:Part-time and Sessional Academic Employees Part-time and sessional professors, instructors, counsellors and librarians The first collective agreement has not yet been negotiated.