sorry for the delay, at the end I read the law.
the law said that whatever the boat's flag is, every boat must buy a bluecard. the bluecard system is not just for the black water at the same time for the gray water. but nowadays they just interested in black water. the law was effective first at mugla region nearly one year ago, just began at antalya region and till 2013 august will be effective at the all seaside regions in turkey
I asked some friends, they said at the beginning the law is just for turkish boats then it changed. sorry for giving wrong knowledge. I never want this. but when I read the same at the amateur sailor's web, I didn't hesitate to write for helping a sailor.
began at gocek region because there are islands which makes gocek a no circulation area. the wind
blows always from west and gocek region close to west.gocek is nearly like a lake. when you think 2000 boats are visiting gocek at the same time, you can understand the reason.
international marpol contract
accept boats 10 people living in, out of marpol law. So you can decharge your waste 3 nm (maybe more I don't know exactly) faraway from the coast. some sailors say turkey signed marpol so it is valid for turkey.
in my opinion, no circulation areas like gocek needs this system for protection. if there are enough stations and collector boats for pumping the waste, I believe everybody wants to protect the sea. but if you are sailing 3 nm faraway from the coast at the open sea, decharging should be acceptable. in the bays there are a lot of boats but at the open sea just a few.
there is a mess now, we are living the beginning period.
turkish sailors arguing this system I hope we can make an advance.
I hope the best for the sea.