new identifiable treatment facility
(4) New identifiable treatment facility (A) In general For purposes of paragraph (1), the term “new identifiable treatment facility” includes only tangible property (not including a building and its structural components, other than a building which is exclusively a treatment facility) which is of a character subject to the allowance for depreciation provided in section 167, which is identifiable as a treatment facility, and which is property— (i) the construction, reconstruction, or erection of which is completed by the taxpayer after December 31, 1968 , or (ii) acquired after December 31, 1968 , if the original use of the property commences with the taxpayer and commences after such date. In applying this section in the case of property described in clause (i) there shall be taken into account only that portion of the basis which is properly attributable to construction, reconstruction, or erection after December 31, 1968 . (B) Certain facilities placed in operation after April 11, 2005 In the case of any facility described in paragraph (1) solely by reason of paragraph (5), subparagraph (A) shall be applied by substituting “ April 11, 2005 ” for “ December 31, 1968 ” each place it appears therein.