; (2) in paragraph (5), by striking regulations and inserting requirements ; and (3) in paragraph (8), by striking public and inserting public-use . 166. Pilot program sunsets (a) In general Sections 47136 and 47140 of title 49, United States Code, are repealed. (b) Conforming amendments (1) Sections 47136a and 47140a of title 49, United States Code, are redesignated as sections 47136 and 47140, respectively. (2) Section 47139 of title 49, United States Code, is amended— (A) by striking subsection (c); and (B) by redesignating subsection (d) as subsection (c). (c) Clerical amendments The analysis for chapter 471 of title 49, United States Code, is amended— (1) by striking the items relating to sections 47136, 47136a, 47140, and 47140a; (2) by inserting after the item relating to section 47135 the following: 47136. Zero-emission airport vehicles and infrastructure. ; and (3) by inserting after the item relating to section 47139 the following: 47140. Increasing the energy efficiency of airport power sources. . 167. Buy America requirements (a) Notice of waivers If the Secretary of Transportation determines that it is necessary to waive the application of section 50101(a) of title 49, United States Code, based on a finding under section 50101(b) of that title, the Secretary, at least 10 days before the date on which the waiver takes effect, shall— (1) make publicly available, in an easily identifiable location on the website of the Department of Transportation, a detailed written justification of the waiver determination