From December 8, 2021 to December 10, 2021

Obstacles Limitation Surfaces Symposium (OLSS 2021)

Virtual/Online

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ICAO has carried out extensive work and detailed studies over the past six years and is now proposing significant changes and improvements to the Obstacles Limitation Surfaces (OLS).  In collaboration with ICAO, ACI aims to increase the international awareness of the proposed changes to the OLS. 


As such, ACI is offering two (2) complimentary vouchers per member, to attend OLSS 2021 and learn more about the proposed new obstacle limitation surfaces (OLS) concept, including associated aeronautical studies. To retrieve your vouchers, contact us at events@aci.aero and provide the names of the participants and of your organization.