I will just jump in because of time, and I'm interested in hearing more from you on this.
Could we not prescribe certain kinds of calibration as part of that exemption, saying that under these specified circumstances, you can go ahead, and that if you're being charged an effective tax rate over such-and-such, you can't? Whatever the rules should be, could we not establish those rules in law, rather than basing them on a potentially shifting and inconsistent authorization regime?