This bill specifically talks to the SPF. We've heard people talk about how that's assessed, and it's quite right. You apply sunblock to skin that is exposed and not exposed, a certain layer—2 milligrams per millimetre as I recall—and then you basically irradiate them and look for where you get minimal redness and compare the time to get minimal redness in an area that is covered and an area that is not, and you do a formulaic division, and that gives you the SPF. This mainly talks to UVB. UVA is not quite so clear, and, in fact, we use something called persistent pigment darkening to determine what the UVA category is. As you'll see, UVA comes into the broad sun spectrum sunblocks—less easy to measure but primarily SPF is talking about UVB, and I'm sure we'll hear more about that in select committee.