Users with the appropriate permissions will be able to delete classes with no participants
Course
Users with the appropriate permissions will be able to delete a course if none of the underlying classes have registered participants
Award
Users with the appropriate permissions will be able to delete awards so long as there are no registrants to the award
Event
Users with the appropriate permissions will be able to delete events that have no registrants
If the Event is associated with a Class, the mapping between the two will be broken upon deletion
Venue
Users with the appropriate permissions will be able to delete a venue regardless of whether it is associated with a registrable object such as a class or event. The deleted venue is also removed from the venue list and all classes/events where it was added.
Room (within a venue)
Users with the appropriate permissions will be able to delete a room from any particular venue. The deleted room is also removed from the room list associated with the venue to which it was attached