Full form of OSSTF is Ontario Secondary School Teachers' Federation
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Frequently Asked Questions
What is the full form of OSSTF?
OSSTF stands for Ontario Secondary School Teachers' Federation.
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"OSSTF." Fullformexpand.com, https://www.fullformexpand.com/osstf/ontario-secondary-school-teachers-federation. Accessed 25 Feb. 2026.
Fullformexpand.com, 2026. "OSSTF." Accessed February 25, 2026. https://www.fullformexpand.com/osstf/ontario-secondary-school-teachers-federation.
"OSSTF." (n.d.). Fullformexpand.com. Retrieved February 25, 2026, from https://www.fullformexpand.com/osstf/ontario-secondary-school-teachers-federation.
OSSTF. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/osstf/ontario-secondary-school-teachers-federation (Accessed: 25 February 2026).
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OSSTF Full Form
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