They question whether general service contractors can offer the same level of service or show the same level of concern. Show organizers also see advantages to EACs. And without EACs, a lot of the shows I've done could not have been built in the time we had. With the proliferation of EACs comes a proliferation of people on the show floor. 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.