the following new paragraph: (16) Phaseout for sustainable aviation fuel production property In the case of any energy property described in paragraph (3)(A)(xii) the construction of which begins before January 1, 2037, the energy percentage determined under paragraph (2) shall be equal to— (A) in the case of any property the construction of which begins after December 31, 2028, and before January 1, 2030, 24 percent, (B) in the case of any property the construction of which begins after December 31, 2029, and before January 1, 2031, 18 percent, and (C) in the case of any property the construction of which begins after December 31, 2030, and before January 1, 2037, 12 percent. , and (2) in subsection (c), by adding at the end the following new paragraph: (9) Sustainable aviation fuel production property (A) In general The term sustainable aviation fuel production property means— (i) property which produces sustainable aviation fuel (as defined in section 40B(d)), or (ii) property directly related to enabling the production or distribution of sustainable aviation fuel. (B) Recapture of credit The Secretary shall, by regulations, provide for recapturing the benefit of any credit allowable under subsection (a)(3)(A)(xii) with respect to any sustainable aviation fuel production property if the sustainable aviation fuel production of such property comprises less than 80 percent of the total fuel production of such property in any of the 5 taxable years immediately following the taxable year in which such property was placed in service. . (b) Effective date The amendments made by this section shall apply to fuel produced after December 31, 2023.