Yes, I checked it out with the FAA - the Airmen's Cert that they give me based on my Foreign License has the same restrictions as the foreign license, but if a restriction is lifted off my foreign licence (getting a night rating) then the restriction is lifted off the FAA license as well without having to reapply. In simple terms - I can get my FAA cert now while holding no night rating, but as soon as I get the night rating on my EASA license I can fly at night in the US, no need to reapply or contact the FAA.
And yes, it's an IAA license I have and I also find the licensing department to be very helpful when you need a favour done. I'm sure if I asked nicely and explained the situation they might stick the night rating onto my license quicker than normal.
Thanks for the replies
