certified rehabilitation
(2) Qualified rehabilitation expenditure defined (A) In general The term “qualified rehabilitation expenditure” means any amount properly chargeable to capital account— (i) for property for which depreciation is allowable under section 168 and which is— (I) nonresidential real property, (II) residential rental property, (III) real property which has a class life of more than 12.5 years, or (IV) an addition or improvement to property described in subclause (I), (II), or (III), and (ii) in connection with the rehabilitation of a qualified rehabilitated building. (B) Certain expenditures not included The term “qualified rehabilitation expenditure” does not include— (i) Straight line depreciation must be used Any expenditure with respect to which the taxpayer does not use the straight line method over a recovery period determined under subsection (c) or (g) of section 168. The preceding sentence shall not apply to any expenditure to the extent the alternative depreciation system of section 168(g) applies to such expenditure by reason of subparagraph (B) or (C) of section 168(g)(1). (ii) Cost of acquisition The cost of acquiring any building or interest therein. (iii) Enlargements Any expenditure attributable to the enlargement of an existing building. (iv) Certified historic structure Any expenditure attributable to the rehabilitation of a qualified rehabilitated building unless the rehabilitation is a certified rehabilitation (within the meaning of subparagraph (C)). (v) Tax-exempt use property (I) In general Any expenditure in connection with the rehabilitation of a building which is allocable to the portion of such property which is (or may reasonably be expected to be) tax-exempt use property (within the meaning of section 168(h), except that “50 percent” shall be substituted for “35 percent” in paragraph (1)(B)(iii) thereof). (II) Clause not to apply for purposes of paragraph (1)(C) This clause shall not apply for purposes of determining under paragraph (1)(C) whether a building has been substantially rehabilitated. (vi) Expenditures of lessee Any expenditure of a lessee of a building if, on the date the rehabilitation is completed, the remaining term of the lease (determined without regard to any renewal periods) is less than the recovery period determined under section 168(c). (C) Certified rehabilitation For purposes of subparagraph (B), the term “certified rehabilitation” means any rehabilitation of a certified historic structure which the Secretary of the Interior has certified to the Secretary as being consistent with the historic character of such property or the district in which such property is located. (D) Nonresidential real property; residential rental property; class life For purposes of subparagraph (A), the terms “nonresidential real property,” “residential rental property,” and “class life” have the respective meanings given such terms by section 168.