Unable to regulate hours and working conditions for child labor within individual states, Congress sought to regulate child labor by banning the product of that labor from interstate commerce. The Keating-Owen Act of 1916 prohibited interstate commerce of any merchandise that had been made by children under the age of fourteen, or merchandise that had been made in factories where children between the ages of 14 and 16 worked for more than eight hours a day, worked overnight, or worked more than sixty hours a week.