For the purposes of harmonization with the European Community act entitled

"Directive 2006/32/EC of the European Parliament and of the Council of 5 April 2006 on energy end-use efficiency and energy services"

the Energy Efficiency in the Final Use and Energy Services Law of 2009 was introduced and amended by Laws 53(I)/2012, 56(I)/2014 and 149(I)/2015.