Any supplier who does business with the Government of Canada is reviewed against the government's integrity regime. PSPC is the holder of that regime. There are two main keys. One is if they're convicted of a criminal charge, and the other is if they've faced charges in Canada. That would, then, trigger the review of their ability, suspend their ability or debar the vendor, depending on severity, from doing business with the Government of Canada.
On March 22nd, 2023. See this statement in context.