I remember something like this in Oman as well, back when I lived there in the late 80s/early 90s. Looking at the situation now though, it looks like it might

I remember something like this in Oman as well, back when I lived there in the late 80s/early 90s. Looking at the situation now though, it looks like it might be a very tiny bit more liberal, in that you still need a "personal consumption licence", but the quota appears to have been done away with.