This entry aggregates hundreds of distinct nations whose access rules range from fully open to strictly closed, so no single status value on the umbrella entity can be honest. A general source can show that variation exists but cannot resolve any one nation's specific rule.
What would resolve this Recording closed-practice-status individually on each nation's own tradition entity, citing that nation's own statement or a specific scholarly or legal source, the way this has already been done for the Hopi, Taos Pueblo, Warlpiri, Arrernte and Haudenosaunee Longhouse traditions and the Native American Church.
OpenWikipedia contributors, Wikipedia, Native American Church (source)