Ontario Secondary School Teachers' Federation District 10

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Sarnia, ON
Ontario Secondary School Teachers' Federation District 10

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OSSTF District 10 is located in Lambton and Kent Counties. Our two major urban centers are Sarnia and Chatham.

We represent the Teachers/Occasional Teachers (T/OT) Bargaining Unit. OSSTF D10 is located in the Sarnia Lambton and Chatham-Kent region and represent the Teacher/Occasional Teacher (T/OT) Bargaining Unit.

11/02/2026

OSSTF/FEESO members: If you were unable to attend your in-person District Bargaining Information Meeting, join us for a virtual session on Wednesday, November 4.

Find out where bargaining stands, what may come next, and what you need to know ahead of the November 6–16 central strike vote.

Submit questions and hear directly from your union!

📅 Wednesday, November 4
🕖 7–8 p.m. ET
💬 French translation & ASL interpretation will be provided.
🔗 Register: https://bit.ly/48o86uS

The more informed, engaged, and organized we are, the stronger we are at the bargaining table 💪🏽

11/02/2026

Treaties are more than agreements made in the past — they are living commitments that continue to shape our relationships, communities, and responsibilities today.

This Treaties Recognition Week, we recognize the importance of understanding the treaties on the lands where we live, work, and learn. It is an opportunity to listen, learn, reflect, and deepen our understanding of the histories, rights, and ongoing contributions of First Nations, Métis, and Inuit peoples.

Reconciliation requires more than recognition. It calls for meaningful action, relationship-building, and an ongoing commitment to honouring treaty responsibilities.

Learn the history. Understand our responsibilities. Honour the commitments.

10/29/2026

New to OSSTF/FEESO?

Before the central strike vote opens on November 6, make sure you know how to cast your ballot and have your Member ID ready!

Check Bargaining Bulletin #13, listed as the October 21 bulletin, for your voting instructions: https://underfunded.ca/members/

10/28/2026

CENTRAL BARGAINING UPDATE

members in the school board sector: Upcoming central bargaining dates and other information has just been sent to your inbox.

Please check your email for the latest bargaining bulletin.

10/26/2026

Test ballot is now OPEN!

members in the school board sector can log in now to practise the voting process ahead of the central strike vote.

Take a minute this week to make sure your login works and you know exactly what to expect before November 6.

Bonus: everyone who participates is automatically entered into a draw for one of five $100 gift cards 🎁

The test ballot closes Friday, October 30 at 9 p.m. ET.

10/26/2026

OSSTF/FEESO members in the school board sector: the test ballot opens tomorrow at 8:30 a.m 🗳️

The test ballot runs October 26–30. Take a few minutes this week to practise logging in and voting before the central strike vote begins November 6.

The test ballot does not count as your central strike vote, and everyone who participates will be entered into a draw for one of five $100 gift cards 🎁

10/26/2026

On Canadian School Library Day, we celebrate the important role school libraries play in public education 📖

School libraries are more than shelves of books. They are spaces where students can explore ideas, strengthen literacy and research skills, discover new perspectives, access information and develop a lifelong love of learning.

They also help make knowledge and learning opportunities accessible to students across our school communities.

Today, we invite you to celebrate your school library. Share a book you discovered there, a memory that stayed with you, or something your school library helped you learn. Comment below.

10/22/2026

IMPORTANT CENTRAL STRIKE VOTE UPDATE 🚨

members in the school board sector: Important central strike vote information has just been sent to your inbox.

Please check your email for the latest bargaining bulletin.

10/21/2026

10/19/2026

🗳️ Get ready to vote!

members in the school board sector: your central strike vote runs November 6–16. You will need your Member ID to access the OSSTF/FEESO Voting Centre.

Want a convenient way to keep your Member ID handy?

Download your digital membership card: https://bit.ly/4jXLU1J

For any questions or issues, email Membership Database through our Contact Us page: https://bit.ly/4yQonEr

Address

50 UBE Drive
Sarnia, ON
N7W1B6

Telephone

+1 519-542-1600

Website

https://www.instagram.com/osstfd10/

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