; (6) the effects on supply chains reliant on air transportation of cargo; (7) the potential impacts on the long-term benefits promised by NextGen; (8) an analysis of the potential impacts on aircraft noise and flight paths; (9) the potential changes in separation standards, fuel consumption, flight paths, block times, and landing procedures or lack thereof; (10) the potential impacts on aircraft taxi times and aircraft emissions or lack thereof; (11) a determination of the total potential costs and logistical challenges of the failure of NextGen, including a comparison of the potential loss of the return on public and private sector investment related to NextGen, as compared to other available investment alternatives, between December 12, 2003 and the date of enactment of this Act; and (12) other matters arising in the course of the study. (c) Report Not later than 1 year after the date of initiation of the study under subsection (a), the Inspector General shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report on the results of the study. 562. Limited regulation of non-federally sponsored property (a) In general Except as provided by subsection (b), the Secretary of Transportation may not directly or indirectly regulate— (1) the acquisition, use, lease, encumbrance, transfer, or disposal of land by an airport owner or operator; (2) any non-Federal facility upon such land; or (3) any portion of such land or facility. (b) Exceptions Subsection (a) does not apply to any regulation— (1) ensuring— (A) the safe and efficient operation of aircraft and airports, including the safety of people and property on the ground; (B) that an airport owner or operator receives not less than fair market value for the lease, use, encumbrance, transfer, or disposal of land, any facilities on such land, or any portion of such land or facilities