In that case, would it not be a better idea to say “may, by regulation or by order”?
I am trying to understand the rationale. An order is a very specific type of government action, whereas a regulatory procedure takes a different form. If the idea is to give the provinces a certain degree of flexibility—and if I understand you correctly, that is indeed the objective—I have a subamendment whereby the provision would read “may, by regulation or by order”. That seems to be consistent with the objective of giving the provinces flexibility.