I think it's reasonable to assume that businesses would have to take on some degree of compliance activity in order to demonstrate compliance with this. An example of that might be a smaller enterprise. A corner store might be a reasonable example.
Many businesses—90% of our enterprises—are small and medium enterprises. It would be challenging in some circumstances for them to be able to prove that they had documented appropriately their selling prices over a period of what constitutes a substantial period of time. That could, in fact, introduce some burden that may not be in keeping with the benefit that could be derived from introducing this provision in the first place.