; (B) adversely affect the safety of people or property on the ground as a result of aircraft operations; or (C) adversely affect the value of prior Federal investments to a significant extent. (2) Limitation on non-aeronautical review If only a portion of a project proposed by an airport owner or operator is subject to the Secretary’s review and approval under subsection (a)(16)(B), the Secretary shall not extend review and approval authority to other non-aeronautical portions of the project. (3) Notice (A) In general An airport owner or operator shall submit to the Secretary a notice of intent to proceed with a proposed project (or a portion thereof) that is outside of the Secretary's review and approval authority, as described in this subsection. (B) Failure to object If not later than 45 days after receiving the notice of intent described in subparagraph (A), the Secretary fails to object to such notice, the proposed project (or portion thereof) shall be deemed as being outside the scope of the Secretary’s review and approval authority under subsection (a)(16)(B). . 629. NEPA purpose and need statements (a) In general To the extent that the FAA is the lead Federal agency for preparation of an environmental impact statement or an environmental assessment under provisions of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) where an action or approval from more than one Federal agency is required, the FAA shall develop its draft purpose and need statement for the project not later than 45 days after— (1) the submission of the airport sponsor’s appropriately completed proposed purpose and need description