{"identifier":"/us/usc/t26/s179D","title":26,"num":"\u00a7\u202f179D.","heading":"Energy efficient commercial buildings deduction","text":"\u00a7\u202f179D.\nEnergy efficient commercial buildings deduction\n(a)\nIn general\nThere shall be allowed as a deduction an amount equal to the cost of energy efficient commercial building property placed in service during the taxable year.\n(b)\nMaximum amount of deduction\n(1)\nIn general\nThe deduction under subsection (a) with respect to any building for any taxable year shall not exceed the excess (if any) of\u2014\n(A) the product of\u2014\n(i) the applicable dollar value, and\n(ii) the square footage of the building, over\n(B) the aggregate amount of the deductions under subsections (a) and (f) with respect to the building for the 3 taxable years immediately preceding such taxable year (or, in the case of any such deduction allowable to a person other than the taxpayer, for any taxable year ending during the 4-taxable-year period ending with such taxable year).\n(2)\nApplicable dollar value\nFor purposes of paragraph (1)(A)(i), the applicable dollar value shall be an amount equal to $0.50 increased (but not above $1.00) by $0.02 for each percentage point by which the total annual energy and power costs for the building are certified to be reduced by a percentage greater than 25 percent.\n(3)\nIncreased deduction amount for certain property\n(A)\nIn general\nIn the case of any property which satisfies the requirements of subparagraph (B), paragraph (2) shall be applied by substituting \u201c$2.50\u201d for \u201c$0.50\u201d, \u201c$.10\u201d for \u201c$.02\u201d, and \u201c$5.00\u201d for \u201c$1.00\u201d.\n(B)\nProperty requirements\nIn the case of any energy efficient commercial building property, energy efficient building retrofit property, or property installed pursuant to a qualified retrofit plan, such property shall meet the requirements of this subparagraph if\u2014\n(i) installation of such property begins prior to the date that is 60 days after the Secretary publishes guidance with respect to the requirements of paragraphs (4)(A) and (5), or\n(ii) installation of such property satisfies the requirements of paragraphs (4)(A) and (5).\n(4)\nPrevailing wage requirements\n(A)\nIn general\nThe requirements described in this subparagraph with respect to any property are that the taxpayer shall ensure that any laborers and mechanics employed by the taxpayer or any contractor or subcontractor in the installation of any property shall be paid wages at rates not less than the prevailing rates for construction, alteration, or repair of a similar character in the locality in which such property is located as most recently determined by the Secretary of Labor, in accordance with subchapter IV of chapter 31 of title 40, United States Code.\n(B)\nCorrection and penalty related to failure to satisfy wage requirements\nRules similar to the rules of section 45(b)(7)(B) shall apply.\n(5)\nApprenticeship requirements\nRules similar to the rules of section 45(b)(8) shall apply.\n(6)\nRegulations\nThe Secretary shall issue such regulations or other guidance as the Secretary determines necessary to carry out the purposes of this subsection, including regulations or other guidance which provides for requirements for recordkeeping or information reporting for purposes of administering the requirements of this subsection.\n(c)\nDefinitions\nFor purposes of this section\u2014\n(1)\nEnergy efficient commercial building property\nThe term \u201cenergy efficient commercial building property\u201d means property\u2014\n(A) with respect to which depreciation (or amortization in lieu of depreciation) is allowable,\n(B) which is installed on or in any building which is\u2014\n(i) located in the United States, and\n(ii) within the scope of Reference Standard 90.1,\n(C) which is installed as part of\u2014\n(i) the interior lighting systems,\n(ii) the heating, cooling, ventilation, and hot water systems, or\n(iii) the building envelope, and\n(D) which is certified in accordance with subsection (d)(5) as being installed as part of a plan designed to reduce the total annual energy and power costs with respect to the interior lighting systems, heating, cooling, ventilation, and hot water systems of the building by 25 percent or more in comparison to a reference building which meets the minimum requirements of Reference Standard 90.1 using methods of calculation under subsection (d)(1).\n(2)\nReference Standard 90.1\nThe term \u201cReference Standard 90.1\u201d means, with respect to any property, the more recent of\u2014\n(A) Standard 90.1-2007 published by the American Society of Heating, Refrigerating, and Air Conditioning Engineers and the Illuminating Engineering Society of North America, or\n(B) the most recent Standard 90.1 published by the American Society of Heating, Refrigerating, and Air Conditioning Engineers and the Illuminating Engineering Society of North America for which the Department of Energy has issued a final determination and which has been affirmed by the Secretary, after consultation with the Secretary of Energy, for purposes of this section not later than the date that is 4 years before the date such property is placed in service.\n(d)\nSpecial rules\n(1)\nMethods of calculation\nThe Secretary, after consultation with the Secretary of Energy, shall promulgate regulations which describe in detail methods for calculating and verifying energy and power consumption and cost with respect to any property, based on the provisions of the most recent California Nonresidential Alternative Calculation Method Approval Manual which has been affirmed by the Secretary, after consultation with the Secretary of Energy, for purposes of this section not later than the date that is 4 years before the date such property is placed in service.\n(2)\nComputer software\n(A)\nIn general\nAny calculation under paragraph (1) shall be prepared by qualified computer software.\n(B)\nQualified computer software\nFor purposes of this paragraph, the term \u201cqualified computer software\u201d means software\u2014\n(i) for which the software designer has certified that the software meets all procedures and detailed methods for calculating energy and power consumption and costs as required by the Secretary,\n(ii) which provides such forms as required to be filed by the Secretary in connection with energy efficiency of property and the deduction allowed under this section, and\n(iii) which provides a notice form which documents the energy efficiency features of the building and its projected annual energy costs.\n(3)\nAllocation of deduction by certain tax-exempt entities\n(A)\nIn general\nIn the case of energy efficient commercial building property installed on or in property owned by a specified tax-exempt entity, the Secretary shall promulgate regulations or guidance to allow the allocation of the deduction to the person primarily responsible for designing the property in lieu of the owner of such property. Such person shall be treated as the taxpayer for purposes of this section.\n(B)\nSpecified tax-exempt entity\nFor purposes of this paragraph, the term \u201cspecified tax-exempt entity\u201d means\u2014\n(i) the United States, any State or political subdivision thereof, any possession of the United States, or any agency or instrumentality of any of the foregoing,\n(ii) an Indian tribal government (as defined in section 30D(g)(9)) or Alaska Native Corporation (as defined in section 3 of the Alaska Native Claims Settlement Act (\n43 U.S.C. 1602(m)\n1\n1 So in original. Another closing parenthesis probably should precede the comma.\n(iii) any organization exempt from tax imposed by this chapter.\n(4)\nNotice to owner\nEach certification required under this section shall include an explanation to the building owner regarding the energy efficiency features of the building and its projected annual energy costs as provided in the notice under paragraph (2)(B)(iii).\n(5)\nCertification\n(A)\nIn general\nThe Secretary shall prescribe the manner and method for the making of certifications under this section.\n(B)\nProcedures\nThe Secretary shall include as part of the certification process procedures for inspection and testing by qualified individuals described in subparagraph (C) to ensure compliance of buildings with energy-savings plans and targets. Such procedures shall be comparable, given the difference between commercial and residential buildings, to the requirements in the Mortgage Industry National Accreditation Procedures for Home Energy Rating Systems.\n(C)\nQualified individuals\nIndividuals qualified to determine compliance shall be only those individuals who are recognized by an organization certified by the Secretary for such purposes.\n(e)\nBasis reduction\nFor purposes of this subtitle, if a deduction is allowed under this section with respect to any energy efficient commercial building property, the basis of such property shall be reduced by the amount of the deduction so allowed.\n(f)\nAlternative deduction for energy efficient building retrofit property\n(1)\nIn general\nIn the case of a taxpayer which elects (at such time and in such manner as the Secretary may provide) the application of this subsection with respect to any qualified building, there shall be allowed as a deduction for the taxable year which includes the date of the qualifying final certification with respect to the qualified retrofit plan of such building, an amount equal to the lesser of\u2014\n(A) the excess described in subsection (b) (determined by substituting \u201cenergy use intensity\u201d for \u201ctotal annual energy and power costs\u201d in paragraph (2) thereof), or\n(B) the aggregate adjusted basis (determined after taking into account all adjustments with respect to such taxable year other than the reduction under subsection (e)) of energy efficient building retrofit property placed in service by the taxpayer pursuant to such qualified retrofit plan.\n(2)\nQualified retrofit plan\nFor purposes of this subsection, the term \u201cqualified retrofit plan\u201d means a written plan prepared by a qualified professional which specifies modifications to a building which, in the aggregate, are expected to reduce such building\u2019s energy use intensity by 25 percent or more in comparison to the baseline energy use intensity of such building. Such plan shall provide for a qualified professional to\u2014\n(A) as of any date during the 1-year period ending on the date on which the property installed pursuant to such plan is placed in service, certify the energy use intensity of such building as of such date,\n(B) certify the status of property installed pursuant to such plan as meeting the requirements of subparagraphs (B) and (C) of paragraph (3), and\n(C) as of any date that is more than 1 year after the date on which the property installed pursuant to such plan is placed in service, certify the energy use intensity of such building as of such date.\n(3)\nEnergy efficient building retrofit property\nFor purposes of this subsection, the term \u201cenergy efficient building retrofit property\u201d means property\u2014\n(A) with respect to which depreciation (or amortization in lieu of depreciation) is allowable,\n(B) which is installed on or in any qualified building,\n(C) which is installed as part of\u2014\n(i) the interior lighting systems,\n(ii) the heating, cooling, ventilation, and hot water systems, or\n(iii) the building envelope, and\n(D) which is certified in accordance with paragraph (2)(B) as meeting the requirements of subparagraphs (B) and (C).\n(4)\nQualified building\nFor purposes of this subsection, the term \u201cqualified building\u201d means any building which\u2014\n(A) is located in the United States, and\n(B) was originally placed in service not less than 5 years before the establishment of the qualified retrofit plan with respect to such building.\n(5)\nQualifying final certification\nFor purposes of this subsection, the term \u201cqualifying final certification\u201d means, with respect to any qualified retrofit plan, the certification described in paragraph (2)(C) if the energy use intensity certified in such certification is not more than 75 percent of the baseline energy use intensity of the building.\n(6)\nBaseline energy use intensity\n(A)\nIn general\nFor purposes of this subsection, the term \u201cbaseline energy use intensity\u201d means the energy use intensity certified under paragraph (2)(A), as adjusted to take into account weather.\n(B)\nDetermination of adjustment\nFor purposes of subparagraph (A), the adjustments described in such subparagraph shall be determined in such manner as the Secretary may provide.\n(7)\nOther definitions\nFor purposes of this subsection\u2014\n(A)\nEnergy use intensity\nThe term \u201cenergy use intensity\u201d means the annualized, measured site energy use intensity determined in accordance with such regulations or other guidance as the Secretary may provide and measured in British thermal units.\n(B)\nQualified professional\nThe term \u201cqualified professional\u201d means an individual who is a licensed architect or a licensed engineer and meets such other requirements as the Secretary may provide.\n(8)\nCoordination with deduction otherwise allowed under subsection (a)\n(A)\nIn general\nIn the case of any building with respect to which an election is made under paragraph (1), the term \u201cenergy efficient commercial building property\u201d shall not include any energy efficient building retrofit property with respect to which a deduction is allowable under this subsection.\n(B)\nCertain rules not applicable\n(i)\nIn general\nExcept as provided in clause (ii), subsection (d) shall not apply for purposes of this subsection.\n(ii)\nAllocation of deduction by certain tax-exempt entities\nRules similar to subsection (d)(3) shall apply for purposes of this subsection.\n(g)\nInflation adjustment\nIn the case of a taxable year beginning after 2022, each dollar amount in subsection (b) shall be increased by an amount equal to\u2014\n(1) such dollar amount, multiplied by\n(2) the cost-of-living adjustment determined under section 1(f)(3) for the calendar year in which the taxable year begins, determined by substituting \u201ccalendar year 2021\u201d for \u201ccalendar year 2016\u201d in subparagraph (A)(ii) thereof.\nAny increase determined under the preceding sentence which is not a multiple of 1 cent shall be rounded to the nearest cent.\n(h)\nRegulations\nThe Secretary shall promulgate such regulations as necessary\u2014\n(1) to take into account new technologies regarding energy efficiency and renewable energy for purposes of determining energy efficiency and savings under this section, and\n(2) to provide for a recapture of the deduction allowed under this section if the plan described in subsection (c)(1)(D) is not fully implemented.\n(i)\nTermination\nThis section shall not apply with respect to property the construction of which begins after\nJune 30, 2026","url":"https://projectusc.org/usc/t26/s179D.html","content":[{"t":"sec","id":"/us/usc/t26/s179D","children":[{"t":"num","text":"\u00a7\u202f179D."},{"t":"heading","text":"Energy efficient commercial buildings deduction"},{"t":"subsec","id":"/us/usc/t26/s179D/a","children":[{"t":"num","text":"(a)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"There shall be allowed as a deduction an amount equal to the cost of energy efficient commercial building property placed in service during the taxable year.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/b","children":[{"t":"num","text":"(b)"},{"t":"heading","text":"Maximum amount of deduction"},{"t":"para","id":"/us/usc/t26/s179D/b/1","children":[{"t":"num","text":"(1)"},{"t":"heading","text":"In general"},{"t":"chapeau","text":"The deduction under subsection (a) with respect to any building for any taxable year shall not exceed the excess (if any) of\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/b/1/A","children":[{"t":"num","text":"(A)"},{"t":"chapeau","text":" the product of\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/b/1/A/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" the applicable dollar value, and","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/b/1/A/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" the square footage of the building, over","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/b/1/B","children":[{"t":"num","text":"(B)"},{"t":"content","text":" the aggregate amount of the deductions under subsections (a) and (f) with respect to the building for the 3 taxable years immediately preceding such taxable year (or, in the case of any such deduction allowable to a person other than the taxpayer, for any taxable year ending during the 4-taxable-year period ending with such taxable year).","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/b/2","children":[{"t":"num","text":"(2)"},{"t":"heading","text":"Applicable dollar value"},{"t":"content","children":[{"t":"p","text":"For purposes of paragraph (1)(A)(i), the applicable dollar value shall be an amount equal to $0.50 increased (but not above $1.00) by $0.02 for each percentage point by which the total annual energy and power costs for the building are certified to be reduced by a percentage greater than 25 percent.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/b/3","children":[{"t":"num","text":"(3)"},{"t":"heading","text":"Increased deduction amount for certain property"},{"t":"subpara","id":"/us/usc/t26/s179D/b/3/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"In the case of any property which satisfies the requirements of subparagraph (B), paragraph (2) shall be applied by substituting \u201c$2.50\u201d for \u201c$0.50\u201d, \u201c$.10\u201d for \u201c$.02\u201d, and \u201c$5.00\u201d for \u201c$1.00\u201d.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/b/3/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Property requirements"},{"t":"chapeau","text":"In the case of any energy efficient commercial building property, energy efficient building retrofit property, or property installed pursuant to a qualified retrofit plan, such property shall meet the requirements of this subparagraph if\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/b/3/B/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" installation of such property begins prior to the date that is 60 days after the Secretary publishes guidance with respect to the requirements of paragraphs (4)(A) and (5), or","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/b/3/B/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" installation of such property satisfies the requirements of paragraphs (4)(A) and (5).","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/b/4","children":[{"t":"num","text":"(4)"},{"t":"heading","text":"Prevailing wage requirements"},{"t":"subpara","id":"/us/usc/t26/s179D/b/4/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"The requirements described in this subparagraph with respect to any property are that the taxpayer shall ensure that any laborers and mechanics employed by the taxpayer or any contractor or subcontractor in the installation of any property shall be paid wages at rates not less than the prevailing rates for construction, alteration, or repair of a similar character in the locality in which such property is located as most recently determined by the Secretary of Labor, in accordance with subchapter IV of chapter 31 of title 40, United States Code.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/b/4/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Correction and penalty related to failure to satisfy wage requirements"},{"t":"content","children":[{"t":"p","text":"Rules similar to the rules of section 45(b)(7)(B) shall apply.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/b/5","children":[{"t":"num","text":"(5)"},{"t":"heading","text":"Apprenticeship requirements"},{"t":"content","children":[{"t":"p","text":"Rules similar to the rules of section 45(b)(8) shall apply.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/b/6","children":[{"t":"num","text":"(6)"},{"t":"heading","text":"Regulations"},{"t":"content","children":[{"t":"p","text":"The Secretary shall issue such regulations or other guidance as the Secretary determines necessary to carry out the purposes of this subsection, including regulations or other guidance which provides for requirements for recordkeeping or information reporting for purposes of administering the requirements of this subsection.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/c","children":[{"t":"num","text":"(c)"},{"t":"heading","text":"Definitions"},{"t":"chapeau","text":"For purposes of this section\u2014"},{"t":"para","id":"/us/usc/t26/s179D/c/1","children":[{"t":"num","text":"(1)"},{"t":"heading","text":"Energy efficient commercial building property"},{"t":"chapeau","text":"The term \u201cenergy efficient commercial building property\u201d means property\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/c/1/A","children":[{"t":"num","text":"(A)"},{"t":"content","text":" with respect to which depreciation (or amortization in lieu of depreciation) is allowable,","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/c/1/B","children":[{"t":"num","text":"(B)"},{"t":"chapeau","text":" which is installed on or in any building which is\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/c/1/B/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" located in the United States, and","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/c/1/B/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" within the scope of Reference Standard 90.1,","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/c/1/C","children":[{"t":"num","text":"(C)"},{"t":"chapeau","text":" which is installed as part of\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/c/1/C/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" the interior lighting systems,","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/c/1/C/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" the heating, cooling, ventilation, and hot water systems, or","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/c/1/C/iii","children":[{"t":"num","text":"(iii)"},{"t":"content","text":" the building envelope, and","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/c/1/D","children":[{"t":"num","text":"(D)"},{"t":"content","text":" which is certified in accordance with subsection (d)(5) as being installed as part of a plan designed to reduce the total annual energy and power costs with respect to the interior lighting systems, heating, cooling, ventilation, and hot water systems of the building by 25 percent or more in comparison to a reference building which meets the minimum requirements of Reference Standard 90.1 using methods of calculation under subsection (d)(1).","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/c/2","children":[{"t":"num","text":"(2)"},{"t":"heading","text":"Reference Standard 90.1"},{"t":"chapeau","text":"The term \u201cReference Standard 90.1\u201d means, with respect to any property, the more recent of\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/c/2/A","children":[{"t":"num","text":"(A)"},{"t":"content","text":" Standard 90.1-2007 published by the American Society of Heating, Refrigerating, and Air Conditioning Engineers and the Illuminating Engineering Society of North America, or","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/c/2/B","children":[{"t":"num","text":"(B)"},{"t":"content","text":" the most recent Standard 90.1 published by the American Society of Heating, Refrigerating, and Air Conditioning Engineers and the Illuminating Engineering Society of North America for which the Department of Energy has issued a final determination and which has been affirmed by the Secretary, after consultation with the Secretary of Energy, for purposes of this section not later than the date that is 4 years before the date such property is placed in service.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/d","children":[{"t":"num","text":"(d)"},{"t":"heading","text":"Special rules"},{"t":"para","id":"/us/usc/t26/s179D/d/1","children":[{"t":"num","text":"(1)"},{"t":"heading","text":"Methods of calculation"},{"t":"content","children":[{"t":"p","text":"The Secretary, after consultation with the Secretary of Energy, shall promulgate regulations which describe in detail methods for calculating and verifying energy and power consumption and cost with respect to any property, based on the provisions of the most recent California Nonresidential Alternative Calculation Method Approval Manual which has been affirmed by the Secretary, after consultation with the Secretary of Energy, for purposes of this section not later than the date that is 4 years before the date such property is placed in service.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/d/2","children":[{"t":"num","text":"(2)"},{"t":"heading","text":"Computer software"},{"t":"subpara","id":"/us/usc/t26/s179D/d/2/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"Any calculation under paragraph (1) shall be prepared by qualified computer software.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/d/2/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Qualified computer software"},{"t":"chapeau","text":"For purposes of this paragraph, the term \u201cqualified computer software\u201d means software\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/d/2/B/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" for which the software designer has certified that the software meets all procedures and detailed methods for calculating energy and power consumption and costs as required by the Secretary,","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/d/2/B/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" which provides such forms as required to be filed by the Secretary in connection with energy efficiency of property and the deduction allowed under this section, and","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/d/2/B/iii","children":[{"t":"num","text":"(iii)"},{"t":"content","text":" which provides a notice form which documents the energy efficiency features of the building and its projected annual energy costs.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/d/3","children":[{"t":"num","text":"(3)"},{"t":"heading","text":"Allocation of deduction by certain tax-exempt entities"},{"t":"subpara","id":"/us/usc/t26/s179D/d/3/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"In the case of energy efficient commercial building property installed on or in property owned by a specified tax-exempt entity, the Secretary shall promulgate regulations or guidance to allow the allocation of the deduction to the person primarily responsible for designing the property in lieu of the owner of such property. Such person shall be treated as the taxpayer for purposes of this section.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/d/3/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Specified tax-exempt entity"},{"t":"chapeau","text":"For purposes of this paragraph, the term \u201cspecified tax-exempt entity\u201d means\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/d/3/B/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" the United States, any State or political subdivision thereof, any possession of the United States, or any agency or instrumentality of any of the foregoing,","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/d/3/B/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" an Indian tribal government (as defined in section 30D(g)(9)) or Alaska Native Corporation (as defined in section 3 of the Alaska Native Claims Settlement Act (","children":[{"t":"ref","text":"43 U.S.C. 1602(m)","href":"/us/usc/t43/s1602/m","tail":"),"},{"t":"ref","text":"1"},{"t":"num","text":"1","tail":"\u202fSo in original. Another closing parenthesis probably should precede the comma."},{"t":"text","text":"\u202fSo in original. Another closing parenthesis probably should precede the comma.","tail":" and"}],"tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/d/3/B/iii","children":[{"t":"num","text":"(iii)"},{"t":"content","text":" any organization exempt from tax imposed by this chapter.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/d/4","children":[{"t":"num","text":"(4)"},{"t":"heading","text":"Notice to owner"},{"t":"content","children":[{"t":"p","text":"Each certification required under this section shall include an explanation to the building owner regarding the energy efficiency features of the building and its projected annual energy costs as provided in the notice under paragraph (2)(B)(iii).","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/d/5","children":[{"t":"num","text":"(5)"},{"t":"heading","text":"Certification"},{"t":"subpara","id":"/us/usc/t26/s179D/d/5/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"The Secretary shall prescribe the manner and method for the making of certifications under this section.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/d/5/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Procedures"},{"t":"content","children":[{"t":"p","text":"The Secretary shall include as part of the certification process procedures for inspection and testing by qualified individuals described in subparagraph (C) to ensure compliance of buildings with energy-savings plans and targets. Such procedures shall be comparable, given the difference between commercial and residential buildings, to the requirements in the Mortgage Industry National Accreditation Procedures for Home Energy Rating Systems.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/d/5/C","children":[{"t":"num","text":"(C)"},{"t":"heading","text":"Qualified individuals"},{"t":"content","children":[{"t":"p","text":"Individuals qualified to determine compliance shall be only those individuals who are recognized by an organization certified by the Secretary for such purposes.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/e","children":[{"t":"num","text":"(e)"},{"t":"heading","text":"Basis reduction"},{"t":"content","children":[{"t":"p","text":"For purposes of this subtitle, if a deduction is allowed under this section with respect to any energy efficient commercial building property, the basis of such property shall be reduced by the amount of the deduction so allowed.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/f","children":[{"t":"num","text":"(f)"},{"t":"heading","text":"Alternative deduction for energy efficient building retrofit property"},{"t":"para","id":"/us/usc/t26/s179D/f/1","children":[{"t":"num","text":"(1)"},{"t":"heading","text":"In general"},{"t":"chapeau","text":"In the case of a taxpayer which elects (at such time and in such manner as the Secretary may provide) the application of this subsection with respect to any qualified building, there shall be allowed as a deduction for the taxable year which includes the date of the qualifying final certification with respect to the qualified retrofit plan of such building, an amount equal to the lesser of\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/f/1/A","children":[{"t":"num","text":"(A)"},{"t":"content","text":" the excess described in subsection (b) (determined by substituting \u201cenergy use intensity\u201d for \u201ctotal annual energy and power costs\u201d in paragraph (2) thereof), or","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/1/B","children":[{"t":"num","text":"(B)"},{"t":"content","text":" the aggregate adjusted basis (determined after taking into account all adjustments with respect to such taxable year other than the reduction under subsection (e)) of energy efficient building retrofit property placed in service by the taxpayer pursuant to such qualified retrofit plan.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/2","children":[{"t":"num","text":"(2)"},{"t":"heading","text":"Qualified retrofit plan"},{"t":"chapeau","text":"For purposes of this subsection, the term \u201cqualified retrofit plan\u201d means a written plan prepared by a qualified professional which specifies modifications to a building which, in the aggregate, are expected to reduce such building\u2019s energy use intensity by 25 percent or more in comparison to the baseline energy use intensity of such building. Such plan shall provide for a qualified professional to\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/f/2/A","children":[{"t":"num","text":"(A)"},{"t":"content","text":" as of any date during the 1-year period ending on the date on which the property installed pursuant to such plan is placed in service, certify the energy use intensity of such building as of such date,","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/2/B","children":[{"t":"num","text":"(B)"},{"t":"content","text":" certify the status of property installed pursuant to such plan as meeting the requirements of subparagraphs (B) and (C) of paragraph (3), and","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/2/C","children":[{"t":"num","text":"(C)"},{"t":"content","text":" as of any date that is more than 1 year after the date on which the property installed pursuant to such plan is placed in service, certify the energy use intensity of such building as of such date.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/3","children":[{"t":"num","text":"(3)"},{"t":"heading","text":"Energy efficient building retrofit property"},{"t":"chapeau","text":"For purposes of this subsection, the term \u201cenergy efficient building retrofit property\u201d means property\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/f/3/A","children":[{"t":"num","text":"(A)"},{"t":"content","text":" with respect to which depreciation (or amortization in lieu of depreciation) is allowable,","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/3/B","children":[{"t":"num","text":"(B)"},{"t":"content","text":" which is installed on or in any qualified building,","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/3/C","children":[{"t":"num","text":"(C)"},{"t":"chapeau","text":" which is installed as part of\u2014"},{"t":"clause","id":"/us/usc/t26/s179D/f/3/C/i","children":[{"t":"num","text":"(i)"},{"t":"content","text":" the interior lighting systems,","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/f/3/C/ii","children":[{"t":"num","text":"(ii)"},{"t":"content","text":" the heating, cooling, ventilation, and hot water systems, or","tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/f/3/C/iii","children":[{"t":"num","text":"(iii)"},{"t":"content","text":" the building envelope, and","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/3/D","children":[{"t":"num","text":"(D)"},{"t":"content","text":" which is certified in accordance with paragraph (2)(B) as meeting the requirements of subparagraphs (B) and (C).","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/4","children":[{"t":"num","text":"(4)"},{"t":"heading","text":"Qualified building"},{"t":"chapeau","text":"For purposes of this subsection, the term \u201cqualified building\u201d means any building which\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/f/4/A","children":[{"t":"num","text":"(A)"},{"t":"content","text":" is located in the United States, and","tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/4/B","children":[{"t":"num","text":"(B)"},{"t":"content","text":" was originally placed in service not less than 5 years before the establishment of the qualified retrofit plan with respect to such building.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/5","children":[{"t":"num","text":"(5)"},{"t":"heading","text":"Qualifying final certification"},{"t":"content","children":[{"t":"p","text":"For purposes of this subsection, the term \u201cqualifying final certification\u201d means, with respect to any qualified retrofit plan, the certification described in paragraph (2)(C) if the energy use intensity certified in such certification is not more than 75 percent of the baseline energy use intensity of the building.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/6","children":[{"t":"num","text":"(6)"},{"t":"heading","text":"Baseline energy use intensity"},{"t":"subpara","id":"/us/usc/t26/s179D/f/6/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"For purposes of this subsection, the term \u201cbaseline energy use intensity\u201d means the energy use intensity certified under paragraph (2)(A), as adjusted to take into account weather.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/6/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Determination of adjustment"},{"t":"content","children":[{"t":"p","text":"For purposes of subparagraph (A), the adjustments described in such subparagraph shall be determined in such manner as the Secretary may provide.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/7","children":[{"t":"num","text":"(7)"},{"t":"heading","text":"Other definitions"},{"t":"chapeau","text":"For purposes of this subsection\u2014"},{"t":"subpara","id":"/us/usc/t26/s179D/f/7/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"Energy use intensity"},{"t":"content","children":[{"t":"p","text":"The term \u201cenergy use intensity\u201d means the annualized, measured site energy use intensity determined in accordance with such regulations or other guidance as the Secretary may provide and measured in British thermal units.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/7/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Qualified professional"},{"t":"content","children":[{"t":"p","text":"The term \u201cqualified professional\u201d means an individual who is a licensed architect or a licensed engineer and meets such other requirements as the Secretary may provide.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/f/8","children":[{"t":"num","text":"(8)"},{"t":"heading","text":"Coordination with deduction otherwise allowed under subsection (a)"},{"t":"subpara","id":"/us/usc/t26/s179D/f/8/A","children":[{"t":"num","text":"(A)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"In the case of any building with respect to which an election is made under paragraph (1), the term \u201cenergy efficient commercial building property\u201d shall not include any energy efficient building retrofit property with respect to which a deduction is allowable under this subsection.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subpara","id":"/us/usc/t26/s179D/f/8/B","children":[{"t":"num","text":"(B)"},{"t":"heading","text":"Certain rules not applicable"},{"t":"clause","id":"/us/usc/t26/s179D/f/8/B/i","children":[{"t":"num","text":"(i)"},{"t":"heading","text":"In general"},{"t":"content","children":[{"t":"p","text":"Except as provided in clause (ii), subsection (d) shall not apply for purposes of this subsection.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"clause","id":"/us/usc/t26/s179D/f/8/B/ii","children":[{"t":"num","text":"(ii)"},{"t":"heading","text":"Allocation of deduction by certain tax-exempt entities"},{"t":"content","children":[{"t":"p","text":"Rules similar to subsection (d)(3) shall apply for purposes of this subsection.","tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/g","children":[{"t":"num","text":"(g)"},{"t":"heading","text":"Inflation adjustment"},{"t":"chapeau","text":"In the case of a taxable year beginning after 2022, each dollar amount in subsection (b) shall be increased by an amount equal to\u2014"},{"t":"para","id":"/us/usc/t26/s179D/g/1","children":[{"t":"num","text":"(1)"},{"t":"content","text":" such dollar amount, multiplied by","tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/g/2","children":[{"t":"num","text":"(2)"},{"t":"content","text":" the cost-of-living adjustment determined under section 1(f)(3) for the calendar year in which the taxable year begins, determined by substituting \u201ccalendar year 2021\u201d for \u201ccalendar year 2016\u201d in subparagraph (A)(ii) thereof.","tail":"\n"}],"tail":"\n\n"},{"t":"continuation","text":"Any increase determined under the preceding sentence which is not a multiple of 1 cent shall be rounded to the nearest cent.","tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/h","children":[{"t":"num","text":"(h)"},{"t":"heading","text":"Regulations"},{"t":"chapeau","text":"The Secretary shall promulgate such regulations as necessary\u2014"},{"t":"para","id":"/us/usc/t26/s179D/h/1","children":[{"t":"num","text":"(1)"},{"t":"content","text":" to take into account new technologies regarding energy efficiency and renewable energy for purposes of determining energy efficiency and savings under this section, and","tail":"\n"}],"tail":"\n"},{"t":"para","id":"/us/usc/t26/s179D/h/2","children":[{"t":"num","text":"(2)"},{"t":"content","text":" to provide for a recapture of the deduction allowed under this section if the plan described in subsection (c)(1)(D) is not fully implemented.","tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"subsec","id":"/us/usc/t26/s179D/i","children":[{"t":"num","text":"(i)"},{"t":"heading","text":"Termination"},{"t":"content","children":[{"t":"p","text":"This section shall not apply with respect to property the construction of which begins after ","children":[{"t":"text","text":"June 30, 2026","tail":"."}],"tail":"\n"}],"tail":"\n"}],"tail":"\n"},{"t":"text","text":"\n"},{"t":"text","text":"\n"}]}]}