Safeguarding the Historic Hanscom Area’s Irreplacable Resources, Inc. v. Fed. Aviation Admin.

The FAA issued permits for modernization of the mixed-use Hanscom airport near the historic towns of Lexington and Concord. Opponents raised challenges under the Department of Transportation Act, 49 U.S.C. 303(c), the National Historic Preservation Act, 16 U.S.C. 470f, and the National Environmental Policy Act (NEPA), 42 U.S.C. 4321-4347. The First Circuit rejected the challenges. The FAA adequately examined alternatives; the determination that none would be prudent was reasonable. The agency went beyond considering reasonably foreseeable impacts and considered worst case scenarios.