Sailing Instructions have been updated and may be downloaded from Race Documents section including a separate amendments file
Boats in all classes shall follow the RYA Guidance on sailing and racing with participants from different households on maintaining separation between crew members while afloat. There is no specified crew limit for boats in White Group, but they do have to follow the RYA’s guidance.
Black Group Crew Limit
80% of the boat’s IRC certificate crew number, rounded to the nearest whole number with 0.5 rounded upwards, except that all boats may opt to race with a minimum of 5 crew.