OK so it's not the 16th edition but via the NIC website you can download some really good information, particularly with regard to bathroom zones.
I found it because we were getting so many calls from people who had been told that a wetroom was all zone 0. So they couldn't have any lighting.
I am at home now and have the details on my bookmark at work. If you want to know where to look in a rush contact me via our website...
************ or wait and I'll get you the details. If you can wait a couple of days I'll post the info here.