- February 15 – Deadline for all Convention awards nominations to be sent to Corporatesecretary@opseu.org
- March 3 – Deadline to submit constitutional amendments to constitution@opseu.org
- March 3 – Deadline to submit resolutions to resolutions@opseu.org
- March 3 – Local credential deadline for Convention to be sent to convention@opseu.org
- March 3 – Deadline for registration using the Member Portal. Please note that you must include a request for a time off letter, childcare and hotel room.
- April 3 – Delegates to be sent links to Sections A – H as per the Constitution.
- April 19 – Convention registration – 1 p.m. until 9 p.m. at the MTCC.
- April 20, 21 and 22 – Convention 2023 at the Metro Toronto Convention Centre