A Cat I ILS is normally good for a RVR of 2400', however with applicable training US airlines can reduce the RVR to 1800' (600M). The visibility minimums can also be increase based on other factors such as signal strength, approach lighting and other factors.
A Cat II
ILS is normally good for RVR of 1200', I don't have any Jepps in front of me, so I can't remember how many meters that translates to.
Cat III ILS is normally below the RVR required for CAT II
. There are really very few CAT III approaches in the world.
Just a note, the controlling limitation to conduct an ILS approach is visibility not ceiling. For a Non precision approach, both ceiling and visibility are controlling.
Again, as it has been pointed out, once you're on the ground, you do need a follow me to get you to the gate, if in fact it is really WOXOF.