The short answer

Not stated

The pages describe credit for out-of-province apprenticeship training but do not state how someone already licensed in another province registers in Ontario.

Source
“If you’re a registered apprentice in another province or territory, you may get credit for your training in Ontario.”
skilledtradesontario.ca/apprenticeship/current-apprentices

Both provinces

Steps to transfer

Not stated by the regulator Check with Skilled Trades Ontario

Processing time: Not stated by the regulator Check with Skilled Trades Ontario

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