Ontario Secondary School Teachers' Federation
DISTRICT 25 Ottawa-Carleton

Occasional Teachers' Bargaining Unit (OTBU)

Secondary daily occasional and long term occasional teachers, please sign up for important news and communications from our bargaining unit.

For information, please visit our new website at

www.d25otbu.ca



September 2025 - Member Update

 

The new  daily occasional rate for the 2025-2026 school year is $286.28 per day. A copy of the Collective Agreement (the rules we agree to work by) should be available in your school's mailboxes - under OT mailbox. 

Contact Karen.Vandewint@d25.osstf.ca (President) or at 613 729 7211, for more information.




The 2025/2026 OTBU executive officers are as follows:

President: Karen Vandewint
Chief Negotiator: Vacant
First Vice President/Educational Services: Jiwon Bae
Second Vice President/Political Action: Susan Rab
Secretary/Constitution Officer: Kelly Fruhauf
Treasurer: Graham Satterthwaite
Communications Officer:
Vacant
Health and Safety Officer:
Vacant
Equity, Anti-Racism and Anti-Oppression Lead:
Eunice O'Mahony
Executive Officer 1:  Rosemary Dockrill
Executive Officer 2: Keir Bisset


Most executive officers are volunteer positions that give members the opportunity to learn about Union work, collectively make decisions and support all OTBU colleagues in their school roles.

Who are the members of the Occasional Teachers' Bargaining Unit?

Occasional Teachers are a diverse group comprised of Daily and Long-Term Occasional Teachers. We include newly licenced grads, folks who have been doing occasional work for decades, part-time permanent teachers also doing OT work, and recent retirees.  For many Occasional teachers, this is a stage in their teaching careers, while for others, this is a way of life.  

Regardless of the demographic make-up, these OSSTF teacher members have issues and concerns that are unique to their precarious and always changing work. Locally, the roster averages approximately 900 Occasional Teachers.  Our 'full-time equivalency' is approximately 375 members.

Local services and representation for this group of OSSTF Occasional Teachers are provided by an elected Bargaining Unit executive of their peers. The areas of service include but are not limited to collective bargaining, contract maintenance, political action, and professional development.

Karen Vandewint, the Bargaining Unit President and Grievance Officer, can be contacted by telephone at 613-729-7211 ext. 209 or by e-mail: karen.vandewint@d25.osstf.ca


Health & Safety Documents
Occupational Health and Safety Concern Form, Employee Violent Incident Report (EVIR), and Safe Schools Incident Report (SSIR) are reported electronically in eBASE — click for INSTRUCTIONS.

Sick Leave Package, Accident Report Form, and WSIB Worker's Exposure Incident Form (asbestos) are available by clicking FORMS.

Health & Safety Reporting Guide

The Joint Occupational Health and Safety Committee posts all the necessary forms. All accidents should be reported to the school principal.  Also send a copy to the OTBU Health & Safety Officer (see above). If you have questions, contact a member of your unit executive.



Pregnancy Leave


Related Attachments

Contact Information

Karen Vandewint

President, Occasional Teachers Bargaining Unit

OSSTF District 25

Business: 613-729-7211