Internal Revenue Code:Sec. 47. Rehabilitation credit

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Contents


Location in Internal Revenue Code


     TITLE 26 - INTERNAL REVENUE CODE
      Subtitle A - Income Taxes
       CHAPTER 1 - NORMAL TAXES AND SURTAXES
        Subchapter A - Determination of Tax Liability
         PART IV - CREDITS AGAINST TAX
          Subpart E - Rules for Computing Investment Credit
        

Statute

    Sec. 47. Rehabilitation credit
 
    (a) General rule
      For purposes of section 46, the rehabilitation credit for any
    taxable year is the sum of -
        (1) 10 percent of the qualified rehabilitation expenditures
      with respect to any qualified rehabilitated building other than a
      certified historic structure, and
        (2) 20 percent of the qualified rehabilitation expenditures
      with respect to any certified historic structure.
    (b) When expenditures taken into account
      (1) In general
        Qualified rehabilitation expenditures with respect to any
      qualified rehabilitated building shall be taken into account for
      the taxable year in which such qualified rehabilitated building
      is placed in service.
      (2) Coordination with subsection (d)
        The amount which would (but for this paragraph) be taken into
      account under paragraph (1) with respect to any qualified
      rehabilitated building shall be reduced (but not below zero) by
      any amount of qualified rehabilitation expenditures taken into
      account under subsection (d) by the taxpayer or a predecessor of
      the taxpayer (or, in the case of a sale and leaseback described
      in section 50(a)(2)(C), by the lessee), to the extent any amount
      so taken into account has not been required to be recaptured
      under section 50(a).
    (c) Definitions
      For purposes of this section -
      (1) Qualified rehabilitated building
        (A) In general
          The term ''qualified rehabilitated building'' means any
        building (and its structural components) if -
            (i) such building has been substantially rehabilitated,
            (ii) such building was placed in service before the
          beginning of the rehabilitation,
            (iii) in the case of any building other than a certified
          historic structure, in the rehabilitation process -
              (I) 50 percent or more of the existing external walls of
            such building are retained in place as external walls,
              (II) 75 percent or more of the existing external walls of
            such building are retained in place as internal or external
            walls, and
              (III) 75 percent or more of the existing internal
            structural framework of such building is retained in place,
            and
            (iv) depreciation (or amortization in lieu of depreciation)
          is allowable with respect to such building.
        (B) Building must be first placed in service before 1936
          In the case of a building other than a certified historic
        structure, a building shall not be a qualified rehabilitated
        building unless the building was first placed in service before
        1936.
        (C) Substantially rehabilitated defined
          (i) In general
            For purposes of subparagraph (A)(i), a building shall be
          treated as having been substantially rehabilitated only if
          the qualified rehabilitation expenditures during the 24-month
          period selected by the taxpayer (at the time and in the
          manner prescribed by regulation) and ending with or within
          the taxable year exceed the greater of -
              (I) the adjusted basis of such building (and its
            structural components), or
              (II) $5,000.
         The adjusted basis of the building (and its structural
          components) shall be determined as of the beginning of the
          1st day of such 24-month period, or of the holding period of
          the building, whichever is later.  For purposes of the
          preceding sentence, the determination of the beginning of the
          holding period shall be made without regard to any
          reconstruction by the taxpayer in connection with the
          rehabilitation.
          (ii) Special rule for phased rehabilitation
            In the case of any rehabilitation which may reasonably be
          expected to be completed in phases set forth in architectural
          plans and specifications completed before the rehabilitation
          begins, clause (i) shall be applied by substituting
          ''60-month period'' for ''24-month period''.
          (iii) Lessees
            The Secretary shall prescribe by regulation rules for
          applying this subparagraph to lessees.
        (D) Reconstruction
          Rehabilitation includes reconstruction.
      (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, etc.
            Any expenditure attributable to the rehabilitation of a
          certified historic structure or a building in a registered
          historic district, unless the rehabilitation is a certified
          rehabilitation (within the meaning of subparagraph (C)). The
          preceding sentence shall not apply to a building in a
          registered historic district if -
              (I) such building was not a certified historic structure,
              (II) the Secretary of the Interior certified to the
            Secretary that such building is not of historic
            significance to the district, and
              (III) if the certification referred to in subclause (II)
            occurs after the beginning of the rehabilitation of such
            building, the taxpayer certifies to the Secretary that, at
            the beginning of such rehabilitation, he in good faith was
            not aware of the requirements of subclause (II).
          (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)).
            (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.
      (3) Certified historic structure defined
        (A) In general
          The term ''certified historic structure'' means any building
        (and its structural components) which -
            (i) is listed in the National Register, or
            (ii) is located in a registered historic district and is
          certified by the Secretary of the Interior to the Secretary
          as being of historic significance to the district.
        (B) Registered historic district
          The term ''registered historic district'' means -
            (i) any district listed in the National Register, and
            (ii) any district -
              (I) which is designated under a statute of the
            appropriate State or local government, if such statute is
            certified by the Secretary of the Interior to the Secretary
            as containing criteria which will substantially achieve the
            purpose of preserving and rehabilitating buildings of
            historic significance to the district, and
              (II) which is certified by the Secretary of the Interior
            to the Secretary as meeting substantially all of the
            requirements for the listing of districts in the National
            Register.
    (d) Progress expenditures
      (1) In general
        In the case of any building to which this subsection applies,
      except as provided in paragraph (3) -
          (A) if such building is self-rehabilitated property, any
        qualified rehabilitation expenditure with respect to such
        building shall be taken into account for the taxable year for
        which such expenditure is properly chargeable to capital
        account with respect to such building, and
          (B) if such building is not self-rehabilitated property, any
        qualified rehabilitation expenditure with respect to such
        building shall be taken into account for the taxable year in
        which paid.
      (2) Property to which subsection applies
        (A) In general
          This subsection shall apply to any building which is being
        rehabilitated by or for the taxpayer if -
            (i) the normal rehabilitation period for such building is 2
          years or more, and
            (ii) it is reasonable to expect that such building will be
          a qualified rehabilitated building in the hands of the
          taxpayer when it is placed in service.
        Clauses (i) and (ii) shall be applied on the basis of facts
        known as of the close of the taxable year of the taxpayer in
        which the rehabilitation begins (or, if later, at the close of
        the first taxable year to which an election under this
        subsection applies).
        (B) Normal rehabilitation period
          For purposes of subparagraph (A), the term ''normal
        rehabilitation period'' means the period reasonably expected to
        be required for the rehabilitation of the building -
            (i) beginning with the date on which physical work on the
          rehabilitation begins (or, if later, the first day of the
          first taxable year to which an election under this subsection
          applies), and
            (ii) ending on the date on which it is expected that the
          property will be available for placing in service.
      (3) Special rules for applying paragraph (1)
        For purposes of paragraph (1) -
        (A) Component parts, etc.
          Property which is to be a component part of, or is otherwise
        to be included in, any building to which this subsection
        applies shall be taken into account -
            (i) at a time not earlier than the time at which it becomes
          irrevocably devoted to use in the building, and
            (ii) as if (at the time referred to in clause (i)) the
          taxpayer had expended an amount equal to that portion of the
          cost to the taxpayer of such component or other property
          which, for purposes of this subpart, is properly chargeable
          (during such taxable year) to capital account with respect to
          such building.
        (B) Certain borrowing disregarded
          Any amount borrowed directly or indirectly by the taxpayer
        from the person rehabilitating the property for him shall not
        be treated as an amount expended for such rehabilitation.
        (C) Limitation for buildings which are not self-rehabilitated
          (i) In general
            In the case of a building which is not self-rehabilitated,
          the amount taken into account under paragraph (1)(B) for any
          taxable year shall not exceed the amount which represents the
          portion of the overall cost to the taxpayer of the
          rehabilitation which is properly attributable to the portion
          of the rehabilitation which is completed during such taxable
          year.
          (ii) Carryover of certain amounts
            In the case of a building which is not a self-rehabilitated
          building, if for the taxable year -
              (I) the amount which (but for clause (i)) would have been
            taken into account under paragraph (1)(B) exceeds the
            limitation of clause (i), then the amount of such excess
            shall be taken into account under paragraph (1)(B) for the
            succeeding taxable year, or
              (II) the limitation of clause (i) exceeds the amount
            taken into account under paragraph (1)(B), then the amount
            of such excess shall increase the limitation of clause (i)
            for the succeeding taxable year.
        (D) Determination of percentage of completion
          The determination under subparagraph (C)(i) of the portion of
        the overall cost to the taxpayer of the rehabilitation which is
        properly attributable to rehabilitation completed during any
        taxable year shall be made, under regulations prescribed by the
        Secretary, on the basis of engineering or architectural
        estimates or on the basis of cost accounting records.  Unless
        the taxpayer establishes otherwise by clear and convincing
        evidence, the rehabilitation shall be deemed to be completed
        not more rapidly than ratably over the normal rehabilitation
        period.
        (E) No progress expenditures for certain prior periods
          No qualified rehabilitation expenditures shall be taken into
        account under this subsection for any period before the first
        day of the first taxable year to which an election under this
        subsection applies.
        (F) No progress expenditures for property for year it is placed
            in service, etc.
          In the case of any building, no qualified rehabilitation
        expenditures shall be taken into account under this subsection
        for the earlier of -
            (i) the taxable year in which the building is placed in
          service, or
            (ii) the first taxable year for which recapture is required
          under section 50(a)(2) with respect to such property,
      or for any taxable year thereafter.
      (4) Self-rehabilitated building
        For purposes of this subsection, the term ''self-rehabilitated
      building'' means any building if it is reasonable to believe that
      more than half of the qualified rehabilitation expenditures for
      such building will be made directly by the taxpayer.
      (5) Election
        This subsection shall apply to any taxpayer only if such
      taxpayer has made an election under this paragraph.  Such an
      election shall apply to the taxable year for which made and all
      subsequent taxable years.  Such an election, once made, may be
      revoked only with the consent of the Secretary.
 

Sources

    (Added Pub. L. 87-834, Sec. 2(b), Oct. 16, 1962, 76 Stat. 966;
    amended Pub. L. 91-172, title VII, Sec. 703(c), Dec. 30, 1969, 83
    Stat. 666; Pub. L. 91-676, Sec. 1, Jan. 12, 1971, 84 Stat. 2060;
    Pub. L. 92-178, title I, Sec. 102(c), 107(a)(1), (b)(1), Dec. 10,
    1971, 85 Stat. 500, 507; Mar. 29, 1975, Pub. L. 94-12, title III,
    Sec. 302(b)(2)(A), (c)(1), (2), 89 Stat. 43, 44; Pub. L. 94-455,
    title VIII, Sec. 804(b), title XIX, Sec. 1906(b)(13)(A), Oct. 4,
    1976, 90 Stat. 1594, 1834; Pub. L. 95-600, title III, Sec. 317(a),
    Nov. 6, 1978, 92 Stat. 2830; Pub. L. 95-618, title II, Sec. 241(b),
    Nov. 9, 1978, 92 Stat. 3193; Pub. L. 97-34, title II, Sec.
    211(f)(2), (g), Aug. 13, 1981, 95 Stat. 231, 233; Pub. L. 97-248,
    title II, Sec. 208(a)(2)(B), Sept. 3, 1982, 96 Stat. 435; Pub. L.
    97-448, title I, Sec. 102(e)(3), Jan. 12, 1983, 96 Stat. 2371; Pub.
    L. 98-369, div.  A, title IV, Sec. 421(b)(7), 431(b)(2), (d)(4),
    (5), 474(o)(8), (9), July 18, 1984, 98 Stat. 794, 807, 810, 836;
    Pub. L. 98-443, Sec. 9(p), Oct. 4, 1984, 98 Stat. 1708; Pub. L.
    99-121, title I, Sec. 103(b)(6), Oct. 11, 1985, 99 Stat. 510; Pub.
    L. 99-514, title XV, Sec. 1511(c)(2), title XVIII, Sec.
    1802(a)(5)(A), 1844(b)(1), (2), (4), Oct. 22, 1986, 100 Stat. 2744,
    2788, 2855; Pub. L. 100-647, title I, Sec. 1002(a)(18), (26)-(28),
    1007(g)(3)(A), Nov. 10, 1988, 102 Stat. 3356, 3357, 3435; Pub. L.
    101-508, title XI, Sec. 11801(c)(8)(A), 11813(a), Nov. 5, 1990, 104
    Stat. 1388-524, 1388-536.)
 

Miscellaneous

                                 AMENDMENTS
      1990 - Pub. L. 101-508, Sec. 11813(a), amended section generally,
    substituting section catchline for one which read: ''Certain
    dispositions, etc., of section 38 property'' and in text
    substituting present provisions for provisions relating to general
    rules regarding disposition of section 38 property,
    nonapplicability of section in certain cases, the treatment of any
    increase in tax under the section, increases in nonqualified
    nonrecourse financing, and transfers between spouses or incident to
    divorce.
      Subsec. (b)(1) to (3). Pub. L. 101-508, Sec. 11801(c)(8)(A),
    inserted ''or'' at end of par. (1), substituted a period for '',
    or'' at end of par. (2), and struck out par. (3) which related to
    nonapplicability of subsec. (a) in the case of a transfer of
    section 38 property related to exchanges under final system plan
    for ConRail.
      1988 - Subsec. (a)(5)(D). Pub. L. 100-647, Sec. 1002(a)(26)(B),
    struck out at end ''If, prior to a disposition to which this
    subsection applies, any portion of any credit is not allowable with
    respect to any property by reason of section 168(i)(3), such
    portion shall be treated (for purposes of this subparagraph) as not
    having been used to reduce tax liability.''
      Subsec. (a)(5)(E)(iii). Pub. L. 100-647, Sec. 1002(a)(26)(C),
    substituted ''168(e)'' for ''168(c)''.
      Subsec. (a)(5)(E)(v). Pub. L. 100-647, Sec. 1002(a)(26)(A), added
    cl. (v).
      Subsec. (a)(9)(A). Pub. L. 100-647, Sec. 1002(a)(27), substituted
    ''section 168(h)(2)'' for ''section 168(j)(4)(C)''.
      Subsec. (c). Pub. L. 100-647, Sec. 1007(g)(3)(A), substituted
    ''D, or G'' for ''or D''.
      Subsec. (d)(1). Pub. L. 100-647, Sec. 1002(a)(18), substituted
    ''section 46(c)(8)(C)'' for ''section 48(c)(8)(C)''.
      Subsec. (d)(3)(C)(i). Pub. L. 100-647, Sec. 1002(a)(28),
    substituted ''class life (as defined in section 168(i)(1))'' for
    ''present class life (as defined in section 168(g)(2))'' and ''no
    class life'' for ''no present class life''.
      1986 - Subsec. (a)(9). Pub. L. 99-514, Sec. 1802(a)(5)(A), added
    par. (9).
      Subsec. (d)(1). Pub. L. 99-514, Sec. 1844(b)(1), substituted
    ''reducing the credit base (as defined in section 48(c)(8)(C))''
    for ''reducing the qualified investment'' and inserted ''For
    purposes of determining the amount of credit subject to the early
    disposition or cessation rules of subsection (a), the net increase
    in the amount of the nonqualified nonrecourse financing with
    respect to the property shall be treated as reducing the property's
    credit base (and correspondingly reducing the qualified investment
    in the property) in the year in which the property was first placed
    in service.''
      Subsec. (d)(3)(E)(i). Pub. L. 99-514, Sec. 1844(b)(4), inserted
    ''reduced by the sum of the credit recapture amounts with respect
    to such property for all preceding years''.
      Subsec. (d)(3)(F). Pub. L. 99-514, Sec. 1844(b)(2), struck out
    subpar. (F) which read as follows: ''The amount of any increase in
    tax under subsection (a) with respect to any property to which this
    paragraph applies shall be determined by reducing the qualified
    investment with respect to such property by the aggregate credit
    recapture amounts for all taxable years under this paragraph.''
      Subsec. (d)(3)(G). Pub. L. 99-514, Sec. 1511(c)(2), substituted
    ''determined at the underpayment rate established under section
    6621'' for ''determined under section 6621''.
      1985 - Subsec. (a)(5)(B). Pub. L. 99-121 substituted ''For
    property other than 3-year property'' for ''For 15-year, 10-year,
    and 5-year property'' in table heading.
      1984 - Subsec. (a)(5)(D), (6). Pub. L. 98-369, Sec. 474(o)(8),
    substituted ''under section 39'' for ''under section 46(b)''.
      Subsec. (a)(7)(C). Pub. L. 98-443 substituted ''Secretary of
    Transportation'' for ''Civil Aeronautics Board''.
      Subsec. (c). Pub. L. 98-369, Sec. 474(o)(9), substituted
    ''subpart A, B, or D'' for ''subpart A''.
      Subsec. (d). Pub. L. 98-369, Sec. 431(b)(2), substituted
    ''Increases in nonqualified nonrecourse financing'' for ''Property
    ceasing to be at risk'' in heading.
      Subsec. (d)(1). Pub. L. 98-369, Sec. 431(b)(2), substituted
    provisions relating to increases in tax liability resulting from
    increases in nonqualified nonrecourse financing for provisions
    relating to increases in tax liability resulting from the taxpayer
    ceasing to be at risk with respect to certain property.
      Subsec. (d)(2). Pub. L. 98-369, Sec. 431(b)(2), substituted
    provisions that for purposes of par. (1), transfers of debt, or
    agreements to transfer, occurring more than one year after the
    initial borrowing shall not be treated as increasing nonqualified
    nonrecourse financing with respect to the taxpayer for provisions
    that for purposes of par. (1), such transfers (or agreements to
    transfer) by a qualified person to a nonqualified person would not
    cause the taxpayer to be treated as ceasing to be at risk.
      Subsec. (d)(3)(A). Pub. L. 98-369, Sec. 431(d)(4), substituted
    ''increasing the amount of nonqualified nonrecourse financing
    (within the meaning of section 46(c)(8))'' for ''ceasing to be at
    risk''.
      Subsec. (d)(3)(B)(i). Pub. L. 98-369, Sec. 431(d)(5), struck out
    ''other than a loan described in section 46(c)(8)(B)(ii)'' after
    ''section 46(c)(8)(F)(iv)''.
      Subsec. (e). Pub. L. 98-369, Sec. 421(b)(7), added subsec. (e).
      1983 - Subsec. (d)(2). Pub. L. 97-448, Sec. 102(e)(3)(A),
    substituted ''section 46(c)(8)(D)'' and ''section 46(c)(8)(B)'' for
    ''section 48(c)(8)(D)'' and ''section 48(c)(8)(B)'', respectively.
      Subsec. (d)(3)(A). Pub. L. 97-448, Sec. 102(e)(3)(B), substituted
    ''section 46(c)(8)(F)'' for ''section 46(c)(8)(E)''.
      1982 - Subsec. (a)(5)(D). Pub. L. 97-248, Sec. 208(a)(2)(B),
    inserted provision that if, prior to a disposition to which this
    subsection applies, any portion of any credit is not allowable with
    respect to any property by reason of section 168(i)(3), such
    portion shall be treated, for purposes of this subparagraph, as not
    having been used to reduce tax liability.
      1981 - Subsec. (a)(3)(D). Pub. L. 97-34, Sec. 211(g)(2)(A),
    inserted provisions relating to disposition, cessation, or change
    in expected use described in paragraph (5).
      Subsec. (a)(5), (6). Pub. L. 97-34, Sec. 211(g)(1), (2)(B), added
    par. (5), redesignated former par. (5) as (6) and substituted
    ''paragraph (1), (3), or (5)'' for ''paragraph (1) or (3)''. Former
    par. (6) redesignated (7).
      Subsec. (a)(7), (8). Pub. L. 97-34, Sec. 211(g)(1), (2)(C),
    redesignated former par. (6) as (7), substituted ''paragraph (6)''
    for ''paragraph (5)'', and redesignated former par. (7) as (8).
      Subsec. (d). Pub. L. 97-34, Sec. 211(f)(2), added subsec. (d).
      1978 - Subsec. (a)(4), (5). Pub. L. 95-618, Sec. 241(b)(1), added
    par. (4), redesignated former par. (4) as (5) and substituted
    ''paragraph (2) or (4)'' for ''paragraph (2)''.
      Subsec. (a)(6)(B). Pub. L. 95-618, Sec. 241(b)(3), substituted
    ''paragraph (5)'' for ''paragraph (4)''.
      Subsec. (b)(3). Pub. L. 95-600, Sec. 317(a), added par. (3).
      1976 - Subsec. (a). Pub. L. 94-455, Sec. 1906(b)(13)(A), struck
    out in introductory provision and in par. (3)(C) ''or his
    delegate'' after ''Secretary''.
      Subsec. (a)(7). Pub. L. 94-455, Sec. 804(b), added par. (7).
      1975 - Subsec. (a)(3), (4). Pub. L. 94-12, Sec. 302(b)(2)(A),
    (c)(1), added par. (3), redesignated former par. (3) as (4) and
    substituted ''paragraph (1) or (3)'' for ''paragraph (1)''. A
    former par. (4), relating to increase or adjustment of tax where
    property is destroyed by casualty, etc., was repealed by Pub. L.
    92-178.
      Subsec. (a)(5), (6)(B). Pub. L. 94-12, Sec. 302(c)(2),
    substituted ''paragraph (4)'' for ''paragraph (3)''.
      1971 - Subsec. (a)(4). Pub. L. 92-178, Sec. 107(a)(1), struck out
    par. (4) relating to property destroyed by casualty, etc.
      Subsec. (a)(5). Pub. L. 92-178, Sec. 107(b)(1), provided for the
    repeal of par. (5) with the repeal not to apply, however, in the
    case of certain replacement property.  See section 107(b)(2) of
    Pub. L. 92-178, set out in the Effective Date of 1971 Amendment
    note below.
      Subsec. (a)(6)(A). Pub. L. 92-178, Sec. 102(c), substituted ''3
    1/2 years'' for ''4 years''.
      Subsec. (a)(6). Pub. L. 91-676 added par. (6).
      1969 - Subsec. (a)(5). Pub. L. 91-172, Sec. 703(c)(2), added par.
    (5).
      Subsec. (a)(4). Pub. L. 91-172, Sec. 703(c)(1), inserted
    provision making subpars. (B) and (C) inapplicable to any casualty
    or theft occurring after April 18, 1969.
                      EFFECTIVE DATE OF 1990 AMENDMENT
      Amendment by section 11813(a) of Pub. L. 101-508 applicable to
    property placed in service after Dec. 31, 1990, but not applicable
    to any transition property (as defined in section 49(e) of this
    title), any property with respect to which qualified progress
    expenditures were previously taken into account under section 46(d)
    of this title, and any property described in section 46(b)(2)(C) of
    this title, as such sections were in effect on Nov. 4, 1990, see
    section 11813(c) of Pub. L. 101-508, set out as a note under
    section 29 of this title.
                      EFFECTIVE DATE OF 1988 AMENDMENT
      Amendment by Pub. L. 100-647 effective, except as otherwise
    provided, as if included in the provision of the Tax Reform Act of
    1986, Pub. L. 99-514, to which such amendment relates, see section
    1019(a) of Pub. L. 100-647, set out as a note under section 1 of
    this title.
                      EFFECTIVE DATE OF 1986 AMENDMENT
      Section 1511(d) of Pub. L. 99-514 provided that: ''The amendments
    made by this section (amending this section and sections 48, 167,
    644, 852, 4497, 6214, 6332, 6343, 6601, 6602, 6611, 6621, 6654,
    6655, and 7426 of this title and sections 1961 and 2411 of Title
    28, Judiciary and Judicial Procedure, and enacting provisions set
    out as a note under section 6621 of this title) shall apply for
    purposes of determining interest for periods after December 31,
    1986.''
      Amendment by sections 1802(a)(5)(A) and 1844(b)(1), (2), (4) of
    Pub. L. 99-514 effective, except as otherwise provided, as if
    included in the provisions of the Tax Reform Act of 1984, Pub. L.
    98-369, div.  A, to which such amendment relates, see section 1881
    of Pub. L. 99-514, set out as a note under section 48 of this
    title.
                      EFFECTIVE DATE OF 1985 AMENDMENT
      Amendment by Pub. L. 99-121 applicable as if included in the
    amendments made by section 111 of the Tax Reform Act of 1984, Pub.
    L. 98-369, see section 105(b)(4) of Pub. L. 99-121, set out as a
    note under section 168 of this title, and section 111(g) of Pub. L.
    98-369, set out as an Effective Date of 1984 Amendment note under
    section 168 of this title.
                     EFFECTIVE DATE OF 1984 AMENDMENTS
      Amendment by Pub. L. 98-443 effective Jan. 1, 1985, see section
    9(v) of Pub. L. 98-443, set out as a note under section 5314 of
    Title 5, Government Organization and Employees.
      Amendment by section 421(b)(7) of Pub. L. 98-369 applicable to
    transfers after July 18, 1984, in taxable years ending after such
    date, subject to election to have amendment apply to transfers
    after 1983 or to transfers pursuant to existing decrees, see
    section 421(d) of Pub. L. 98-369, set out as an Effective Date note
    under section 1041 of this title.
      Amendment by section 431(b)(2), (d)(4), (5) of Pub. L. 98-369
    applicable to property placed in service after July 18, 1984, in
    taxable years ending after such date, but not applicable to
    property to which subsec. (d) of this section and section 46(c)(8),
    (9) of this title, as enacted by section 211(f) of Pub. L. 97-34,
    do not apply, with the taxpayer having an option to elect
    retroactive application of amendment by Pub. L. 98-369, see section
    431(e) of Pub. L. 98-369, set out as a note under section 46 of
    this title.
      Amendment by section 474(o)(8), (9) of Pub. L. 98-369 applicable
    to taxable years beginning after Dec. 31, 1983, and to carrybacks
    from such years, see section 475(a) of Pub. L. 98-369, set out as a
    note under section 21 of this title.
                      EFFECTIVE DATE OF 1983 AMENDMENT
      Amendment by Pub. L. 97-448 effective, except as otherwise
    provided, as if it had been included in the provision of the
    Economic Recovery Tax Act of 1981, Pub. L. 97-34, to which such
    amendment relates, see section 109 of Pub. L. 97-448, set out as a
    note under section 1 of this title.
                      EFFECTIVE DATE OF 1982 AMENDMENT
      Amendment by Pub. L. 97-248 applicable to agreements entered into
    after July 1, 1982, or to property placed in service after that
    date, but not to transitional safe harbor lease property, nor to
    qualified leased property described in section 168(f)(8)(D)(v) of
    this title which is placed in service before Jan. 1, 1988, or is
    placed in service after such date pursuant to a binding contract or
    commitment entered into before April 1, 1983, and solely because of
    conditions which, as determined by the Secretary of the Treasury or
    his delegate, are not within the control of the lessor or lessee,
    see section 208(d)(1), (2)(A), (5) of Pub. L. 97-248, set out as a
    note under section 168 of this title.
                      EFFECTIVE DATE OF 1981 AMENDMENT
      Amendment by section 211(g) of Pub. L. 97-34 applicable to
    property placed in service after Dec. 31, 1980, see section
    211(i)(1) of Pub. L. 97-34, set out in a note under section 46 of
    this title.
      Amendment by section 211(f)(2) of Pub. L. 97-34 not to apply to
    property placed in service by the taxpayer on or before Feb. 18,
    1981, and property placed in service by the taxpayer after Feb. 18,
    1981, where such property was acquired by the taxpayer pursuant to
    a binding contract entered into on or before that date, see section
    211(i)(5) of Pub. L. 97-34, set out as a note under section 46 of
    this title.
                      EFFECTIVE DATE OF 1978 AMENDMENT
      Section 317(b) of Pub. L. 95-600 provided that: ''The amendment
    made by subsection (a) (amending this section) shall apply to
    taxable years ending after March 31, 1976.''
                      EFFECTIVE DATE OF 1976 AMENDMENT
      Amendment by section 804(b) of Pub. L. 94-455 applicable to
    taxable years beginning after Dec. 31, 1974, see section 804(e) of
    Pub. L. 94-455, set out as a note under section 48 of this title.
                      EFFECTIVE DATE OF 1975 AMENDMENT
      Amendment by Pub. L. 94-12 applicable to taxable years ending
    after Dec. 31, 1974, see section 305(a) of Pub. L. 94-12, set out
    as a note under section 46 of this title.
                     EFFECTIVE DATE OF 1971 AMENDMENTS
      In redetermining qualified investment for purposes of subsec. (a)
    of this section in the case of any property which ceases to be
    section 38 property with respect to the taxpayer after Aug. 15,
    1971, or which becomes public utility property after such date,
    section 46(c)(2) of this title as amended by section 102(a) of Pub.
    L. 92-178 as applicable, see section 102(d)(2) of Pub. L. 92-178,
    set out as a note under section 46 of this title.
      Amendment by section 107(a)(1) of Pub. L. 92-178 applicable to
    casualties and thefts occurring after Aug. 15, 1971, see section
    107(a)(2) of Pub. L. 92-178, set out as a note under section 46 of
    this title.
      Section 107(b)(2) of Pub. L. 92-178, as amended by Pub. L.
    99-514, Sec. 2, Oct. 22, 1986, 100 Stat. 2095, provided that: ''The
    repeal made by paragraph (1) (repealing subsec. (a)(5) of this
    section) shall not apply if replacement property described in
    subparagraph (B) of such section 47(a)(5) is not property described
    in section 50 of the Internal Revenue Code of 1986 (formerly I.R.C.
    1954).''
      Section 102(d)(3) of Pub. L. 92-178 provided that: ''The
    amendment made by subsection (c) (amending this section) shall
    apply to leases executed after April 18, 1969.''
      Section 2 of Pub. L. 91-676 provided that: ''The amendment made
    by the first section of this Act (amending this section) shall
    apply to taxable years ending after April 18, 1969.''
                               EFFECTIVE DATE
      Section applicable with respect to taxable years ending after
    Dec. 31, 1961, see section 2(h) of Pub. L. 87-834, set out as a
    note under section 46 of this title.
                             SAVINGS PROVISION
      For provisions that nothing in amendment by Pub. L. 101-508 be
    construed to affect treatment of certain transactions occurring,
    property acquired, or items of income, loss, deduction, or credit
    taken into account prior to Nov. 5, 1990, for purposes of
    determining liability for tax for periods ending after Nov. 5,
    1990, see section 11821(b) of Pub. L. 101-508, set out as a note
    under section 29 of this title.
             PLAN AMENDMENTS NOT REQUIRED UNTIL JANUARY 1, 1989
      For provisions directing that if any amendments made by subtitle
    A or subtitle C of title XI (Sec. 1101-1147 and 1171-1177) or title
    XVIII (Sec. 1800-1899A) of Pub. L. 99-514 require an amendment to
    any plan, such plan amendment shall not be required to be made
    before the first plan year beginning on or after Jan. 1, 1989, see
    section 1140 of Pub. L. 99-514, as amended, set out as a note under
    section 401 of this title.
     CLARIFICATION OF EFFECT OF 1984 AMENDMENT ON INVESTMENT TAX CREDIT
      For provision that nothing in the amendments made by section
    474(o) of Pub. L. 98-369, which amended this section, be construed
    as reducing the investment tax credit in taxable years beginning
    before Jan. 1, 1984, see section 475(c) of Pub. L. 98-369, set out
    as a note under section 46 of this title.
 

Transfer of Functions.

                           TRANSFER OF FUNCTIONS
      Functions, powers, and duties of Federal Aviation Agency and of
    Administrator and other offices and officers thereof transferred by
    Pub. L. 89-670, Oct. 15, 1966, 80 Stat. 931, to Secretary of
    Transportation, with functions, powers, and duties of Secretary of
    Transportation pertaining to aviation safety to be exercised by
    Federal Aviation Administrator in Department of Transportation, see
    section 106 of Title 49, Transportation.
 

References

                   SECTION REFERRED TO IN OTHER SECTIONS
      This section is referred to in sections 49, 50, 170, 469, 772,
    1400I of this title.
 

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