Class G Airspace Events Exceeding 400 Feet AGL

Verified from official sources
AC 91-57C ¶ 3.5.1.1Version 1Effective -Verified 22 August 2026

In plain language

If you are flying in a CBO event in Class G airspace that is planned to go above 400 feet AGL, the organizing CBO must coordinate with the FAA beforehand.

Requirement as structured

Community-Based Organizations intending to conduct events in Class G airspace that may exceed 400 feet AGL must contact the FAA for further information.

Original regulatory text

CBOs intending to conduct events in Class G airspace that may exceed 400 feet AGL must contact the FAA for further information.

Applies when

country
United States
airspace class
G
regulatory category
General