To protect themselves against liability, show managers need to know who is on their floor. Some shows require exhibitors to provide separate forms for each contractor. Some require that the name of every individual working for the EAC be listed. The forms, together with proof of general liability insurance and workmen's compensation insurance, must be provided by an established deadline. The latter seem unreasonable to EACs, who often find their clients making major changes right up to showtime.
Some organizers strictly enforce their deadlines, others offer some leeway.
Like other personnel, EAC workers must wear badges on the show floor. Some organizers simply provide exhibitors with enough exhibitor badges to cover the EAC workers they have registered. Others have EAC registration desks where each EAC must sign in before receiving special badges. If a show doesn't ask for paperwork, some EACs tell their customers to draft letters informing the organizer that they're bringing in EACs. As far as we're concerned, if an exhibitor hires EACs, the EACs are part of the exhibitor's staff.