Amends the National Trails System Act to provide that, in the case of any donation, transfer, lease, sale, or other conveyance of a railroad right-of-way for interim use, such use of the right-of-way shall not begin until the payment or deposit of compensation to each of the owners of the land underlying the right-of-way has been made: (1) in accordance with specified law, including the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970; or (2) pursuant to the order of a court of competent jurisdiction in a condemnation proceeding consistent with such law.