The short answer

Not stated

The pages say certificate holders from another Canadian province or territory must apply using the Canadian Certificate Holder Guide and Form, but do not state whether an exam or competence assessment is required.

Source
“If you have a certificate, license or credential from another Canadian province or territory and would like to obtain an Ontario Certificate of Qualification, please note that the Canadian certificate holder application is currently not available through the Skilled Trades Ontario Portal.”
skilledtradesontario.ca/skilled-trades-ontario-portal

Both provinces

Licensed in SaskatchewanMoving to Ontario
Licence status Voluntary certification Voluntary certification
Regulator Saskatchewan Apprenticeship and Trade Certification Commission Skilled Trades Ontario
Guide Parts technician in Saskatchewan Parts technician in Ontario

Steps to transfer

  1. Apply by PDF form

    Source
    “If you have a certificate, license or credential from another Canadian province or territory and would like to obtain an Ontario Certificate of Qualification, please note that the Canadian certificate holder application is currently not available through the Skilled Trades Ontario Portal. You must use the PDF application form and email or mail your application to Skilled Trades Ontario.”
    skilledtradesontario.ca/skilled-trades-ontario-portal

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

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