Route 66 National Historic Trail Designation Act

HR 4338 formally designates the historic Route 66 as a National Historic Trail under the National Trails System Act, covering approximately 2,400 miles from Chicago, Illinois, to Santa Monica, California, along its original alignments between 1926 and 1985. The bill specifies that the National Park Service will administer the trail while prohibiting the federal government from acquiring land beyond one-quarter mile on either side of the trail or creating buffer zones, and explicitly states it will not interfere with energy development or use eminent domain. This designation primarily affects the public by recognizing Route 66's historical significance and landowners along the route by limiting federal land acquisition and management restrictions. It is a procedural act focused on formal recognition, not new regulatory requirements.