Thank you for the question.
I wouldn't say that it was a common practice.
Let me just frame that there's the "Manager's Guide", and then last week we announced mandatory procedures. Really, this is about getting back to basics and having good hygiene when we do our procurement. In procurement, there's the contracting authority; so you hear a lot about procurement officers, but managers who are business owners also have accountabilities and responsibilities. What we're trying to do, in plain language, is make them sure that they're aware. With the mandatory procedure, we're embedding it now into the approval process. It's embedded into the structures.