OBS_VALUE: <ul><li><a href=http://www.law.go.kr/lsInfoP.do?lsiSeq=188713&ancYd=20161227&ancNo=14497&efYd=20170328&nwJoYnInfo=Y&efGubun=Y&chrClsCd=010202#0000 target=_blank>National Technical Qualifications Act(국가기술자격법, Enforcement Date: 1 July 1974 (Law No. 2672), last updated on 28 March 2017 (By No.14497), Article 12, 21)</a></li><li><a href=http://law.go.kr/lsInfoP.do?lsiSeq=179653&ancYd=20160119&ancNo=13805&efYd=20160812&nwJoYnInfo=Y&efGubun=Y&chrClsCd=010202#0000 target=_blank>Construction Technology Promotion Act(건설기술진흥법, Enforcement Date: 1 January 1988 (Law No. 3934), last updated on 10 February 2018 (By No.14848), Article 22)</a></li></ul>