I want to know the answer to the following question:
What does the Indian Arts and Crafts Act of 1990 require artists to prove they're enrolled in?
All the background I'm provided with is that "To support the ongoing practice of American Indian, Alaska Native and Native Hawaiian arts and cultures in the United States, the Ford Foundation, arts advocates and American Indian tribes created an endowment seed fund and established a national Native Arts and Cultures Foundation in 2007.". Is that enough to answer the question?
Answer: no