Yeah, that's an old rule not often enforced. I would think it would be something more serious than that. If you're shipment didn't comply based on volumes, they would not seize it, but rather deny entry.
Even if they enforced seizure, I wouldn't think that multiple companies would be affected by that. It would be a short-term financial loss and not a business killer.
Age verifier Northern Alberta
Democracy is two wolves and a sheep discussing what's for dinner.
Freedom is the wolves limping away while the sheep reloads.
Never confuse freedom with democracy.