Lethbridge School District No. 51Lethbridge, Alta. (400 educational assistants, library, administrative, support employees) and the Canadian Union of Public Employees (CUPE), Local 284302/25/2019|Canadian Labour Reporter|Last Updated: 02/25/2019 Renewal agreement: Effective Sept. 1, 2017, to Aug. 31, 2020. Ratified on May 3, 2018. Signed on Jan. 11, 2019.Wage adjustments: To Read the Full Story, Subscribe or Sign In Remember Me Forgot Password If you are a current Subscriber, please click here to set-up or update your login information.