To amend the National Trails System Act to designate the Route 66 National Historic Trail, and for other purposes.

This bill, the Route 66 National Historic Trail Designation Act, would designate the Route 66 corridor as a National Historic Trail under the National Trails System Act. It creates a formal Route 66 National Historic Trail, roughly 2,400 miles from Chicago to Santa Monica, based on all alignments of U.S. Highway 66 from 1926–1985. Administration would be by the Department of the Interior through the National Park Service, with a commitment to respect the trail’s unique character and to engage in robust tribal consultation. The bill sets land acquisition rules (no broad land grabs beyond the trail’s exterior boundaries and no more than about a quarter-mile on either side), prohibits the use of eminent domain, and explicitly states that the designation does not create buffer zones or place Route 66 lands within the National Park System. It also preserves existing authorities to grant easements or rights‑of‑way and clarifies that no new federal permit requirements would be triggered by the designation. A map illustrating the proposed route would be publicly available and filed with the National Park Service.