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VBC certification is a review of your business against published criteria, ending in a dated certificate and an entry on a public register. There are three levels. Each is a superset of the one below it, and the level appears on the certificate so nobody has to guess how far the checks went.
Work through these four pages in order:
The process
The five stages from application to publication, and how long each one typically takes.
Requirements
What you need to supply at each level. Read this before applying so you can gather documents once.
Benefits
What certification is actually useful for, and what it does not claim.
Pricing
Annual fees for each level and what the fee covers.
Fees cover the review, not the outcome. An application that does not meet the criteria is declined or returned for further evidence.