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What is this ?

1788 Views 2 Replies 2 Participants Last post by  dayexco
what exactly is a 4001 certificate, a local gc asked me to fax him my wsib and 4001 certificate, is it an ISO rating? i cannot find any information online about this and asked a few of my other contractor friends and everyone is clueless. :rolleyes:

He is a large builder with a hundred contract houses lined up.
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if you're going to advertise your services here, at least give the owners of the forum a few bucks
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