In 1910, President Taft signed the Buy Indian Act into law, The Washington Times reports. The law requires the Interior Department's Bureau of Indian Affairs to give preference to American Indian-owned businesses in awarding contracts and funding. But the Interior Department only just approved the rules that will enforce the legislation, The Washington Times further reports. As a result of the law, an estimated $45 million would go to American Indian-owned and -operated businesses each year.
(I wonder how many other laws never had their implementing regulations put into place.)