ENFORCEMENT DECREE OF THE CLEAN AIR CONSERVATION ACT Wholly Amended by Presidential Decree No.20383,Nov.15,2007Amended by Presidential Decree No.20547,Jan.15,2008Presidential Decree No.20680,Feb.29,2008Presidential Decree No.20789,May 21,2008Presidential Decree No.21025,Sep.22,2008Presidential Decree No.21229,Dec.31,2008Presidential Decree No.21241,Dec.31,2008Presidential Decree No.21325,Feb.13,2009Presidential Decree No.21586,Jun.30,2009Presidential Decree No.21590,Jun.30,2009Presidential Decree No.21626,Jul.7,2009Presidential Decree No.22075,Mar.15,2010Presidential Decree No.22100,Mar.26,2010CHAPTER I GENERAL PROVISIONS Article 1 (Purpose) The purpose of this Decree is to provide for matters delegated by the Clean Air Conservation ActClean Air Conservation Act and matters necessary for the enforcement thereof. Article 2 (Areas for which Air Pollution Alerts are Issued, etc.) (1) Areas for which air pollution alerts under Clean Air Cons...