One area where I've seen some great discrepancy is CFIA. They are all supposedly reading the same handbook, but there seem to be various versions of it. What one plant can do...a neighbouring plant may have nowhere near the restrictions. That is extremely problematic, when you're trying to compete and the playing field is not level. That would be one of the examples that I struggled with when I was running processing plants. The rules were not consistent within our own CFIA.
On January 26th, 2021. See this statement in context.