Unit 4 contract: July 1, 2018 – June 30, 2021. . Memorandum – Implementation of January 1, 2017 Increase of 1% – Trigger of turnover. . More than 90% of management employees are covered by a union contract. Unionized roles include: accountants, facility service worker, electricians, prison officers, state soldiers, LPNs and RNs, social workers, lawyers, doctors, engineers, and librarians, among hundreds of other roles. Unit contract 10 – January 2017 – December 2019. Memorandum of Understanding for the current Unit 4A contract (accessible version) Amendment of the current Article 4 (accessible version). . Memorandum – Implementation of the July 2017 contract – June 2020. List of currently active employment codes of the Executive Bargaining Unit. . .