What is the test for reasonableness?

Ontario, Canada


The following excerpt is from United Brotherhood of Carpenters (Local 249) v. Matrix North American Construction Ltd., 2019 ONSC 5647 (CanLII):

Reasonableness involves consideration of the existence of justification, transparency and intelligibility within the decision-making process, and consideration of whether the decision falls within a range of possible acceptable outcomes that are defensible in respect of the facts and the law: Dunsmuir v. New Brunswick, 2008 SCC 9, at para. 47.

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