The rules and procedures for handling waiting lists are not explicit. Page 68
UK C11.2 The deadline for entries to Ranking Competitions shall be 15 days prior to the first day of the competition (the Friday two weeks prior to the competition).
The priority entry deadline (before which host paddlers get priority of entry) is the Friday four weeks prior to the competition
The competition organiser may impose a limit on numbers, either in the published calendar or at the time of planning the start list. If such a limit is applied, priority of entry shall be as follows:
a) Up to and including the Priority Entry Deadline: Host division paddlers, in order of receipt of entries.
b) After the Priority Entry Deadline host paddlers in order of receipt, followed by “paddling up” in order of receipt.
If a paddler is promoted, their entry is treated as a host division entry received at the date the organiser is notified. If the Competitor has an accepted paddle up entry this will be converted to a Host division entry, otherwise they will remain on the waiting list, but with higher (host) priority