OBS_VALUE: <ul><li><a href=http://www.law.go.kr/LSW/lsEfInfoP.do?lsiSeq=200240# target=_blank>Aviation Business Act(항공사업법, Enforcement Date: 30 March 2017 (Law No. 14115), last updated on 26 December 2017 (By No.15325), Article 8(1)(2))</a></li><li><a href=http://www.law.go.kr/lsInfoP.do?lsiSeq=194860&efYd=20170718#0000 target=_blank>Enforcement Rule of Aviation Business Act(항공사업법 시행규칙, Enforcement Date: 30 March 2017, last updated on  18 July 2017, Articles 8)</a></li></ul>