"All subcontractors must provide valid before beginning work on the project site."

The primary purpose of a clearance certificate is to from financial liability. Clearances | WSIB

: For most construction projects, both the principal and contractor are legally required to ensure a valid clearance is in effect before work starts; failure to do so is an offence [5.6, 5.20]. Requirements for "Good Standing" To be eligible for a clearance, a business must meet these criteria: Active Account