never mentioned in the UK IR or maybe I forgot. However the FAA put great emphasis on the hold short lines for the "ILS sensitive area". I'm not certified for anything other than CAT 1 landings, but under Part 91 a Zero/Zero take off is permitted, and as a result its important that Pilot's be familiar with Hold short lines in Low vis Procedures. I would imagine that the exit line is in the same place as the entry ilne.