; (2) in paragraph (21) by striking the period at the end and inserting ; and ; and (3) by adding at the end the following: (22) the airport owner or operator may not restrict or prohibit the sale or self-fueling of any 100-octane low lead aviation gasoline for purchase or use by operators of general aviation aircraft if such aviation gasoline was available at such airport at any time during calendar year 2022, until the earlier of— (A) December 31, 2030; or (B) the date on which the airport or any retail fuel seller at such airport makes available an unleaded aviation gasoline that— (i) has been authorized for use by the Administrator of the Federal Aviation Administration as a replacement for 100-octane low lead aviation gasoline for use in nearly all piston-engine aircraft and engine models; and (ii) meets either an industry consensus standard or other standard that facilitates the safe use, production, and distribution of such unleaded aviation gasoline, as determined appropriate by the Administrator. . (b) Civil penalties for grant assurances violations Section 46301(a) of title 49, United States Code, is further amended— (1) in paragraph (1)(A) by inserting section 47107(a)(22) (including any assurance made under such section), after chapter 451,