(a) New phaseout rules added to qualified plug-In electric vehicle tax credit Subsection (e) of section 30D of the Internal Revenue Code of 1986 is amended to read as follows: (e) Limitation on number of new qualified plug-In electric drive motor vehicles eligible for credit (1) In general In the case of any new qualified plug-in electric drive motor vehicle sold after the date of the enactment of the Clean Energy Innovation and Deployment Act of 2020 — (A) if such vehicle is sold during the transition period, the amount determined under subsection (b)(2) shall be reduced by $500, and (B) if such vehicle is sold during the phaseout period, only the applicable percentage of the credit otherwise allowable under subsection (a) shall be allowed. (2) Transition period For purposes of this subsection, the transition period subsequent to the first date on which the number of new qualified plug-in electric drive motor vehicles manufactured by the manufacturer of the vehicle referred to in paragraph (1) sold for use in the United States after December 31, 2009, is at least 200,000. (3) Phaseout period (A) In general For purposes of this subsection, the phaseout period is the period beginning with the second calendar quarter following the calendar quarter which includes the first date on which the number of new qualified plug-in electric drive motor vehicles manufactured by the manufacturer of the vehicle referred to in paragraph (1) sold for use in the United States after December 31, 2009, is at least 600,000. (B) Applicable percentage For purposes of paragraph (1)(B), the applicable percentage is— (i) 50 percent for the first calendar quarter of the phaseout period, and (ii) 0 percent for each calendar quarter thereafter. (C) Exclusion of sale of certain vehicles (i) In general For purposes of subparagraph (A), any new qualified plug-in electric drive motor vehicle manufactured by the manufacturer of the vehicle referred to in paragraph (1) which was sold during the exclusion period shall not be included for purposes