The Secretary, in accordance with this section, shall allow free-roaming horses in the Ozark National Scenic Riverways. Within 180 days after November 12, 1996, the Secretary shall enter into an agreement with the Missouri Wild Horse League or another qualified nonprofit entity to provide for management of free-roaming horses. The agreement shall provide for cost-effective management of the horses and limit Federal expenditures to the costs of monitoring the agreement. The Secretary shall issue permits for adequate pastures to accommodate the historic population level of the free-roaming horse herd, which shall be not less than the number of horses in existence on November 12, 1996, nor more than 50.

Nothing in this section shall be construed as creating liability for the United States for any damages caused by the free-roaming horses to property located inside or outside the boundaries of the Ozark National Scenic Riverways.