16 U.S.C. § 8421 — Biking on long-distance trails

(a) Within 18 months after January 4, 2025, the Secretaries must identify at least 10 long-distance bike trails that already use existing trails and roads, and at least 10 more areas where a new long-distance bike trail could be built or completed.

(b) The Secretaries must create a way for the public to comment on which trails and areas get chosen, and must spread the new trails out geographically in a fair way.

(c) For each trail identified, the Secretary^* in charge of that land may publish maps, put up signs, hand out promotional materials, and work with outside groups to bring in non-federal money and help for building and maintaining the trail.

(d) Within 2 years after January 4, 2025, the Secretaries, working with interested organizations, must publish a report listing the trails they identified and summarizing the public comments they received.

(e) Before naming a trail, the Secretary in charge must make sure it avoids conflicts with existing uses — like hiking, horseback riding, or pack-stock use that were already happening there before 2025 — with the purposes of any trail already established under the National Trails System Act, and with any area protected under the Wilderness Act. The trail must also follow the applicable land management plans.

(f) The Secretaries cannot use eminent domain or condemnation to get land for these trails.

(g) A "long-distance bike trail" is a continuous route of at least 80 miles, made mostly of dirt or natural-surface trails, though it can include paved connector roads. It cannot cross federal land where mountain biking isn't allowed under that land's management rules, and it should use existing trails and roads wherever practical. "Secretaries" means the Secretary of the Interior and the Secretary of Agriculture acting together.