Just a point to keep in mind here. Pans Ops has no legal standing on its own. The way it is given power is through each State's AIP.
It's wise to know what the AIP actually says because some States apply more stringent speed limits than those available in Pans Ops. Here, for example, Cat C/D is limited to a maximum of 200 KIAS for Initial Approach (Cat A/B is limited to 170 KIAS).
I have an idea that the UK restricts Cat D speed to something like 185 KIAS, but I could stand to be corrected on that.