You cannot do a real CAT2 or 3 or 3B approach below CAT 1 minimas unless ATC advise "LVP IN FORCE"
Be careful if/when you come to Japan, Nitpicker. There is no clue that LVPs are in force (SSPs, as they call them) and certainly no announcement on ATIS, as would be sensible and in common with most of the rest of civilised world. They initiate LVPs when the weather falls below certain criteria, which one is supposed to know. It doesn't help that the criteria differ for different airports
