Amortization
(2) Amortization. If, for the taxable year which includes June 30, 1972, the basis of any property is amortized under section 169, 184, 187, or 188, or any similar provision, then adjustments to earnings and profits for depreciation or amortization of such property for taxable years beginning after June 30, 1972, shall be determined as if the unrecovered cost or other basis of the property (less a reasonable estimate for salvage) as of the first day of the first taxable year beginning after June 30, 1972, were recovered through equal annual allowances over the estimated remaining useful life of the property determined in accordance with the circumstances existing at that time. See paragraph (a)(3)(ii) of this section for rules relating to the applicability of section 167(f).