OBS_VALUE: <ul><li><a href=https://sso.agc.gov.sg/SL/CAASA2009-S311-2009?DocDate=20160331#pr3- target=_blank>Civil Aviation Authority Of Singapore (Licensing Of Airport Operators) Act 2009(No. S 311Civil Aviation Authority Of Singapore Act 2009(Act 17 Of 2009)Civil Aviation Authority Of Singapore (Licensing Of Airport Operators) Regulations 2009. Last amended 1 Aprile 2016. Article 3. )</a></li><li><a href=https://sso.agc.gov.sg/Act/CAASA2009#pr36- target=_blank>Civil Aviation Authority of Singapore Act(Civil Aviation Authority Of Singapore Act(Chapter 41)(Original Enactment: Act 17 Of 2009)Revised Edition 2014(31st May 2014). Last amended on 30 July 2020.Article 53.)</a></li><li><a href=https://sso.agc.gov.sg/SL/CAASA2009-S298-2009 target=_blank>Civil Aviation Authority of Singapore (Price Control of Aeronautical Charges) Rules 2009(Civil Aviation Authority of Singapore (Price Control of Aeronautical Charges) Rules 2009, enacted 01 July 2009, last amended 08 January 2018, Part II, First Schedule )</a></li></ul>