Sikh players who wear turbans for religious reasons had also been prevented from playing basketball under FIBA's policy.
As part of a two-year testing program that FIBA agreed to in 2014 following intervention by CAIR and Sikh organizations, players can currently wear hijabs (and Sikh turbans) in some competitions. FIBA will likely issue its final decision on hijab after the Rio Olympics.
CIAR is the United States’ largest Muslim civil rights and advocacy organization.
Source: CAIR