of section This section shall only apply to fuel produced before January 1, 2031. . (b) Credit made part of general business credit Section 38(b) (relating to current year business credit) is amended by striking plus at the end of paragraph (32), by striking the period at the end of paragraph (33) and inserting , plus , and by inserting after paragraph (33) the following new paragraph: (34) the sustainable aviation fuel credit determined under section 40B. . (c) Conforming amendment Section 40A(f) of such Code is amended by striking paragraph (4). (d) Effective date The amendments made by this section shall apply to fuel produced after December 31, 2020. 10. EPA certification of neat sustainable aviation fuel blending component (a) In general Not later than 180 days after the date of enactment of this Act, the Administrator of the Environmental Protection Agency shall promulgate regulations, for purposes of section 40B of the Internal Revenue Code of 1986, to certify— (1) whether a liquid fuel produced by a fuel producer qualifies as a neat sustainable aviation fuel blending component under subsection (c)(2)(C) of such section