; and (2) by striking subsection (b) and inserting the following: (b) [Reserved]. . (b) Airport layout plan approval authority Section 47107 of title 49, United States Code, is amended— (1) in subsection (a)(16)— (A) by striking subparagraph (B) and inserting the following: (B) subject to subsection (x), the Secretary will review and approve or disapprove the plan and any revision or modification of the plan before the plan, revision, or modification takes effect; ; and (B) in subparagraph (C)(i), by striking subparagraph (B) and inserting subsection (x) ; and (2) by adding at the end the following new subsection: (x) Scope of the Secretary's airport layout plan review and approval authority (1) Authority over projects on land acquired without Federal assistance For purposes of subsection (a)(16)(B), with respect to any project proposed on land acquired by an airport owner or operator without Federal assistance, the Secretary may only review and approve or disapprove those portions of the plan (or any subsequent revision to the plan) that— (A) materially impact the safe and efficient operation of aircraft at, to, or from the airport; (B) adversely affect the safety of people or property on the ground as a result of aircraft operations