The short answer

Direct transfer

A holder of a certificate from another Canadian province or territory can apply using the Canadian Certificate Holder Guide and Form, and once the application is approved a Certificate of Qualification is issued, with no additional exam or assessment stated.

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

Both provinces

Licensed in New BrunswickMoving to Ontario
Licence status Certification required Certification required
Regulator New Brunswick Department of Post-Secondary Education, Training and Labour Skilled Trades Ontario
Guide Sheet metal worker in New Brunswick Sheet metal worker in Ontario

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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