hazzah írta:Have I been breaking the law?
Yes, you did. However, if you did not get caught, it does not matter. Just take it to an emission measuring center (or whatever) and get the green "card" and the sticker. You should be fine.
hazzah írta:Do I need one now before I can use the car?
Once again, if you do not get caught, you are fine. If you do, then they can detach your license plate and can take your car registration (from then on it will be a pain to get it back etc.)
hazzah írta:Do I have some time to get the Green Card?
It is about 30 minutes of your life, plus travel time to the nearest station. That's it.
hazzah írta:What happens in Hungary when the Okmany Iroda issues new plates. What do you do about the Green card and Sticker?
That is pretty much the same question in pink. However, if you meant that you get new license plates but you had your Emission documents, you should be able to get a replacement sticker in no time for almost no money.
Cheers,
Ronin