Section 16a-40b-10b - Eligibility requirements for residential structures with more than four dwelling units(a)Eligible Costs(2) Mechanical Systems including, but not limited to;(A) Heating systems efficiency improvements,(B) Domestic hot water system efficiency improvements, or(C) Lighting efficiency improvements;(3) Building Envelope Improvements; or(b)Eligible Structures(1) Loans in this program shall be used for residential structures only;(2) Any eligible residential structure shall be located within the State of Connecticut;(3) Prior to closing the loan, any delinquent property taxes or outstanding code violations must be satisfactorily resolved, in the opinion of the Commissioner.Conn. Agencies Regs. § 16a-40b-10b