Pub. L. 112–95, title III, § 307(d), Feb. 14, 2012, 126 Stat. 62, provided that: “Not later than 90 days after the date of enactment of this Act [Feb. 14, 2012], the Administrator of the Federal Aviation Administration shall initiate a rulemaking procedure for regulations to carry out section 44732 of title 49, United States Code (as added by this section), and shall issue a final rule thereunder not later than 2 years after the date of enactment of this Act.”