; (2) by redesignating subparagraph (C) as subparagraph (D); and (3) by inserting after subparagraph (B) the following new subparagraph: (D) the Secretary determines the grant obligation does not exceed the amounts made available under paragraph (1) of section 47117(f) of such title 49 for that fiscal year; and . (b) Effective date The amendments made by subsection (a) shall take effect as if included in the enactment of the FAA Reauthorization Act of 2018 ( Public Law 115–254 ). III Securing and Revitalizing Aviation (SARA Act) 301. Limitation of liability for certain individuals designated as representatives of the Federal Aviation Administration (a) In general Any individual designated by the Administrator under subpart C of part 183 of title 14, Code of Federal Regulations, to act as a representative of the Administrator, including an aviation medical examiner, pilot examiner, or designated airworthiness representative, shall, when carrying out duties pursuant to that designation and without regard to the individual’s employer— (1) be considered to be performing an activity necessary to safeguard a uniquely Federal interest