Can we play or train on dates allocated as Priority for other activity?

There is absolutely nothing within the calendar which mandates that you cannot conduct non-priority activity on a date set aside for higher priorities, other than on dates set aside for key National Events (Pro League fixtures and Super 6s). However, it is expected that if a player/coach/teacher etc. has clashes, that they should be encouraged and supported to take part in the priority activity on that date.