Hi Capt Jacko,
That bit has been on the net for about 2 years without being enforced. This is why I am a little confused. By the sounds of it, you have been told at Yat Marine that you have to have this, and obviously couldn't get a new Transit Log without it, but this doesn't fit with my experience last month at Netsel, nor does it match the experience that my brother in law had with his boat just a couple of weeks back at Yat Marine (although his boat is now on the hard there, so it may not have been an issue).
It seems VERY confusing to me, as the only implementation I had seen of this was down in Gocek and only for Black Water tanks!
As I say, the regulations you quoted off the web, have been around for ages. Just not enforced.
I'm curious as to what the other folk on here are experiencing, as this will have a major impact on whether I choose to stay in the area next year, or move (I'm not in Turkey anymore, so rely on secondhand info such as this).