15-year property

(i) any municipal wastewater treatment plant,

(ii) any telephone distribution plant and comparable equipment used for 2-way exchange of voice and data communications,

(iii) any section 1250 property which is a retail motor fuels outlet (whether or not food or other convenience items are sold at the outlet),

(iv) initial clearing and grading land improvements with respect to gas utility property,

(v) any section 1245 property (as defined in section 1245(a)(3)) used in the transmission at 69 or more kilovolts of electricity for sale and the original use of which commences with the taxpayer after April 11, 2005,

(vi) any natural gas distribution line the original use of which commences with the taxpayer after April 11, 2005, and which is placed in service before January 1, 2011, and

(vii) any qualified improvement property.