IIIB, and IIIC. There's a section of the plate that lists visibility
limitations for the subcategories; the omission of IIIC from that section
means that there is no visibility limitation for IIIC.

I have to disagree with you on that: I believe the omission of certain
approach minimums equates to a statement that such approach is not authorized.
On the same plate (KJFK 4R CAT III), there's no circling minimums, and this
doesn't obviously imply that circling with no visibility limitation is allowed.

Andrey



The EWS plate lists all three approach minima.

Assuming that's a typo for EWR (I find no EWS), the plate for ILS 4R CAT III
does not list minima for IIIC; rather, it says the IIIC approach is not
authorized (NA). http://www.naco.faa.gov/d-tpp/0608/00285I4RC3.PDF

--Gary