OBS_VALUE: <ul><li><a href=http://www.law.go.kr/lsInfoP.do?lsiSeq=195015&ancYd=20170726&ancNo=14839&efYd=20170726&nwJoYnInfo=Y&efGubun=Y&chrClsCd=010202#0000 target=_blank>Customs Act(관세법, Enforcement Date: 23 November 1949 (Law No. 67), last upda, Articles 256-260)</a></li><li><a href=http://www.law.go.kr/lsInfoP.do?lsiSeq=195479&efYd=20170726#0000 target=_blank>Postal Service Act(관세법 시행령, Enforcment Date: 1 April 1950, last updated on 26 July 2017, Chapter IV, Article 31)</a></li></ul>