So, basically, what the direction would need to be is quite specific to the territorial authorities—to talk about the date by which they must comply. But that also has to take into account what's practicable for the territorial authority themselves in implementing it. They also need to specify the level of fluoride that must be added, because we want to keep that within a reasonably narrow range. Also the direction can allow that the territorial authority has one or more specified site where non-fluoridated water could be available so that there's some choice at that level. But they also need to engage with the local authority, and so before making the decision, the director-general needs to invite comments from the local authority. Some of those comments need to centre around what the likely cost would be. That includes, as I said before, ongoing maintenance and management, but also when they could, in practical terms, comply with any direction. Then they need to give that authority at least 40 working days to provide comments back. If they do get those comments back within 40 days, then the director-general needs to take that into account in any decision making. 