showstack / standards / ansi-es1-9
ANSI ES1.9-2026
Event Safety - Crowd Management
Scope
Requirements and guidance for crowd management planning at live events: capacity, flow, monitoring, communication and the interfaces between security, production and emergency services.
Notes
Post-Astroworld, the reference US document for what a defensible crowd plan contains.
Where to get it
ESTA TSP published documents (free download)
Sources
- ESTA Technical Standards Program — published documents — ESTA primary
Understand the mechanism
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