Indigenous peoples of the Americas
Visual arts by indigenous peoples of the Americas comprise a major category in the world art collection. Contributions include pottery, paintings, jewellery, weavings, sculptures, basketry, carvings, and beadwork. Because too many artists were posing as Native Americans and Alaska Natives in order to profit from the caché of Indigenous art in the United States, the U.S. passed the Indian Arts and Crafts Act of 1990, requiring artists to prove that they are enrolled in a state or federally recognized tribe. 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.

Q: What does the Indian Arts and Crafts Act of 1990 require artists to prove they're enrolled in?
a state or federally recognized tribe