A change to this document has been announced. The effect of this change is to replace references to obsolete legislation with the Building Opportunities in the Skilled Trades Act, 2021 (CA-ON-SO2021,c28), as it relates to arborists qualified to give an opinion on the use of unlisted pesticides for maintaining a tree's health. The first effective date of the document that makes the change is January 1, 2022. More information about the change, including any additional effective dates, is available here.

Published : 4 Jan, 2022