Route 66 National Historic Trail Designation Act

This bill designates the Route 66 National Historic Trail, covering approximately 2,400 miles from Chicago, Illinois, to Santa Monica, California, along all historical alignments of U.S. Highway 66 (1926-1985). It directs the National Park Service to administer the trail while respecting its unique character, requiring tribal consultation for significant impacts on Native American tribes, and explicitly prohibiting land acquisition beyond 1/4 mile on either side of the trail. The bill clarifies it does not create buffer zones, disrupt energy infrastructure (including pipelines or renewable projects), or designate the trail as part of the National Park System, while affirming existing authority for easements and rights-of-way.