(a) In general. The amortizable basis of a certified pollution control facility for the purpose of computing the amortization deduction under section 169 is the adjusted basis of the facility for purposes of determining gain (see part II (section 1011 and following), subchapter O, chapter 1 of the Internal Revenue Code), in conjunction with paragraphs (b), (c), and (d) of this section. The adjusted basis for purposes of determining gain (computed without regard to paragraphs (b), (c), and (d) of this section) of a facility that performs a function in addition to pollution control, or that is used in connection with more than one plant or other property, or both, is determined under §1.169-2(a)(3). For rules as to additions and improvements to such a facility, see paragraph (f) of this section. Before computing the amortization deduction allowable under section 169, the adjusted basis for purposes of determining gain for a facility that is placed in service by a taxpayer after September 10, 2001, and that is qualified property under section 168(k)(2) or §1.168(k)-1, 50-percent bonus depreciation property under section 168(k)(4) or §1.168(k)-1, or qualified New York Liberty Zone property under section 1400L(b) or §1.1400L(b)-1 must be reduced by the amount of the additional first year depreciation deduction allowed or allowable, whichever is greater, under section 168(k) or section 1400L(b), as applicable, for the facility. Further, before computing the amortization deduction allowable under section 169, the adjusted basis for purposes of determining gain for a facility that is acquired and placed in service after September 27, 2017, and that is qualified property under section 168(k), as amended by the Tax Cuts and Jobs Act, Public Law 115-97 (131 Stat. 2054 (December 22, 2017)) (the “Act”), or §1.168(k)-2, must be reduced by the amount of the additional first year depreciation deduction allowed or allowable, whichever is greater, under section 168(k), as amended by the Act.

(b) Limitation to post-1968 construction, reconstruction, or erection.

(1) If the construction, reconstruction, or erection was begun before January 1, 1969, there shall be included in the amortizable basis only so much of the adjusted basis of such facility for purposes of determining gain (referred to in paragraph (a) of this section) as is properly attributable under the rules set forth in paragraph (b)(2)(iii) of §1.169-2 to construction, reconstruction, or erection after December 31, 1968. See section 169 (d)(4). For example, assume a certified pollution control facility for which the shortest period authorized under section 167 is 10 years has a cost of $500,000, of which $450,000 is attributable to construction after December 31, 1968. Further, assume such facility does not perform a function in addition to pollution control and is used only in connection with a plant in operation before January 1, 1969. The facility would have an amortizable basis of $450,000 (computed without regard to paragraphs (c) and (d) of this section). For depreciation of the remaining portion ($50,000) of the cost, see section 169(g) and paragraph (a)(3)(ii) of §1.169-1. For the definition of the term “certified pollution control facility” see paragraph (a) of §1.169-2.

(2) If the taxpayer elects to begin the 60-month amortization period with the first month of the taxable year succeeding the taxable year in which the facility is completed or acquired and a depreciation deduction is allowable under section 167 (including an additional first-year depreciation allowance under former section 179; for a facility that is acquired by the taxpayer after September 10, 2001, and that is qualified property under section 168(k)(2) or §1.168(k)-1 or qualified New York Liberty Zone property under section 1400L(b) or §1.1400L(b)-1, the additional first year depreciation deduction under section 168(k)(1) or 1400L(b), as applicable; and for a facility that is acquired by the taxpayer after May 5, 2003, and that is 50-percent bonus depreciation property under section 168(k)(4) or §1.168(k)-1, the additional first year depreciation deduction under section 168(k)(4)) with respect to the facility for the taxable year in which it is completed or acquired, the amount determined under paragraph (b)(1) of this section shall be reduced by an amount equal to the amount of the depreciation deduction allowed or allowable, whichever is greater, multiplied by a fraction the numerator of which is the amount determined under paragraph (b)(1) of this section, and the denominator of which is the facility's total cost. The additional first-year allowance for depreciation under former section 179 will be allowable only for the taxable year in which the facility is completed or acquired and only if the taxpayer elects to begin the amortization deduction under section 169 with the taxable year succeeding the taxable year in which such facility is completed or acquired. For a facility that is acquired by a taxpayer after September 10, 2001, and that is qualified property under section 168(k)(2) or §1.168(k)-1 or qualified New York Liberty Zone property under section 1400L(b) or §1.1400L(b)-1, see §1.168(k)-1(f)(4) or §1.1400L(b)-1(f)(4), as applicable, with respect to when the additional first year depreciation deduction under section 168(k)(1) or 1400L(b) is allowable. For a facility that is acquired by a taxpayer after May 5, 2003, and that is 50-percent bonus depreciation property under section 168(k)(4) or §1.168(k)-1, see §1.168(k)-1(f)(4) with respect to when the additional first year depreciation deduction under section 168(k)(4) is allowable.

(c) Modification for profitmaking abatement works, etc. If it appears that by reason of estimated profits to be derived through the recovery of wastes or otherwise (as determined by applying the rules prescribed in paragraph (d) of §1.169-2) a portion or all of the total costs of the certified pollution control facility will be recovered over the period referred to in paragraph (a)(b) of §1.169-2, its amortizable basis (computed without regard to this paragraph and paragraph (d) of this section) shall be reduced by an amount equal to (1) its amortizable basis (so computed) multiplied by (2) a fraction the numerator of which is such estimated profits and the denominator of which is its adjusted basis for purposes of determining gain. See section 169(e).

(d) Cases in which the period referred to in paragraph (a)(6) of §1.169-2 exceeds 15 years. If as to a certified pollution control facility the period referred to in paragraph (a)(6) of §1.169-2 exceeds 15 years (determined as of the first day of the first month for which a deduction is allowable under the election made under the section 169(b) and paragraph (a) of §1.169-4), the amortizable basis of such facility shall be an amount equal to (1) its amortizable basis (computed without regard to this paragraph) multiplied by (2) a fraction the numerator of which is 15 years and the denominator of which is the number of years of such period. See section 169(f) (2)(A).

(e) Examples. This section may be illustrated by the following example:

(f) Additions or improvements.

(1) If after the completion or acquisition of a certified pollution control facility further expenditures are made for additional construction, reconstruction, or improvements, the cost of such additions or improvements made prior to the beginning of the amortization period shall increase the amortizable basis of such facility, but the cost of additions or improvements made after the amortization period has begun, shall not increase the amortizable basis. See section 169(f)(2)(B).

(2) If expenditures for such additional construction, reconstruction, or improvements result in a facility which is new and is separately certified as a certified pollution control facility as defined in section 169(d)(1) and paragraph (a) of §1.169-2, and, if proper election is made, such expenditures shall be taken into account in computing under paragraph (a) of this section the amortizable basis of such new and separately certified pollution control facility.

(g) Effective date for qualified property, 50-percent bonus depreciation property, and qualified New York Liberty Zone property. This section applies to a certified pollution control facility. This section also applies to a certified pollution control facility that is qualified property under section 168(k)(2) or qualified New York Liberty Zone property under section 1400L(b) acquired by a taxpayer after September 10, 2001, and to a certified pollution control facility that is 50-percent bonus depreciation property under section 168(k)(4) acquired by a taxpayer after May 5, 2003. The last sentence of paragraph (a) of this section applies to a certified pollution control facility that is qualified property under section 168(k)(2) and placed in service by a taxpayer during or after the taxpayer's taxable year that includes September 24, 2019. However, a taxpayer may choose to apply the last sentence of paragraph (a) of this section to a certified pollution control facility that is qualified property under section 168(k)(2) and acquired and placed in service after September 27, 2017, by the taxpayer during taxable years ending on or after September 28, 2017. A taxpayer may rely on the last sentence in paragraph (a) of this section in regulation project REG-104397-18 (2018-41 IRB 558) (see §601.601(d)(2)(ii)(b) of this chapter) for a certified pollution control facility that is qualified property under section 168(k)(2) and acquired and placed in service after September 27, 2017, by the taxpayer during taxable years ending on or after September 28, 2017, and ending before the taxpayer's taxable year that includes September 24, 2019.

[T.D. 7116, 36 FR 9015, May 18, 1971; 36 FR 9770, May 28, 1971, as amended by T.D. 9091, 68 FR 53004, Sept. 8, 2003; T.D. 9283, 71 FR 51746, Aug. 31, 2006; T.D. 9874, 84 FR 50149, Sept. 24, 2019]