Historical
ANSI E1.21-2013
Entertainment Technology - Temporary Structures Used for Technical Production of Outdoor Entertainment Events
E1.21 establishes a minimum level of design and performance parameters for the design, manufacturing, use and maintenance of temporary ground supported structures used in the production of outdoor entertainment events. The purpose of this guidance is to ensure the structural reliability and safety of these structures and does not address fire safety and safe egress issues.
Entertainment Services and Technology Association [esta]