; (II) is higher than the preceding target; (III) promotes the achievement of commercial and residential high-performance buildings (as defined in section 401 of the Energy Independence and Security Act of 2007 ( 42 U.S.C. 17061 )) through high performance energy efficiency; and (IV) takes into consideration the variations in climate zones used in model building energy codes. (ii) Initial targets Not later than 1 year after the date of enactment of this clause, the Secretary shall establish initial targets under this subparagraph. (iii) Different target years Subject to clause (i), prior to the applicable year, the Secretary may set a later target year for any of the model building energy codes described in subparagraph (A) if the Secretary determines that a target cannot be met. (iv) Small business When establishing targets under this paragraph through rulemaking, the Secretary shall ensure compliance with the Small Business Regulatory Enforcement Fairness Act of 1996 ( 5 U.S.C. 601 note; Public Law 104–121 ). (3) Appliance standards and other factors affecting building energy use In establishing building code targets under paragraph (2), the Secretary shall develop and adjust the targets in recognition of potential savings and costs relating to— (A) efficiency gains made in appliances, lighting, windows, insulation, and building envelope sealing; (B) advancement of distributed generation and on-site renewable power generation technologies; (C) equipment improvements for heating, cooling, and ventilation systems; (D) building management systems and smart technologies to reduce energy use