In what situations is the FMC FIX page(s) used for?and ....Anyone know the exact FAA specifications for a required cat III landing?

>In what situations is the FMC FIX page(s) used for?>>and ....>>Anyone know the exact FAA specifications for a required cat>III landing?I'll add an appendix in the (pretty near) future on the FIX page - it's often used for planning purposes, i.e. where does the BRV 130 radial lie in relation to my route?Cat III can be as low as 0/0 (CATIIIc), IF the airplane AND the crew AND the runway are certified for it.