The International Energy Conservation Code (IECC), 2009 Edition, as published by the International Code Council and amended by this chapter, is hereby adopted as the energy conservation code of the City of Topeka for the purpose of regulating and governing energy-efficient building envelopes and installation of energy-efficient mechanical, lighting and power systems. The IECC shall apply only to residential buildings as defined in TMC 14.80.060. (Ord. 19697 § 2, 2-7-12.)