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I am not sure if its every state youve been in for a year or more after the age of 18. I would get it though but review the info on the CIC website. They will tell you there.
 
I think they will, as it's almost 6 months
 
Hi

Suin said:
I think they will, as it's almost 6 months

Please read http://www.cic.gc.ca/english/information/security/police-cert/north-america/united-states.asp

You don't need US state certificates unless the processing office asks for them.

PMM