Law on Energy (Revised version of Law as of 22 December 2011 No. XI-1888 has not been translated yet)
Law on Pollution Tax (see Article 5) (not incorporated the following amendments: No. XI-254 of 12 May 2009, No. XI-1169 of 23 November 2010, No. XI-1371 of 28 April 2011 and No. XI-1894 of 22 December 2011)