Here

An excerpt from Justice Cavanagh’s unanimous opinion:

While it is impossible to articulate a precise rule that will encompass every possible factual situation, in light of the interests protected by ICWA, the potentially high costs of erroneously concluding that notice need not be sent, and the relatively low burden of erring in favor of requiring notice, we think the standard for triggering the notice requirement of 25 USC 1912(a) must be a cautionary one. Therefore, we hold first that sufficiently reliable information of virtually any criteria on which tribal membership might be based suffices to trigger the notice requirement. We hold also that a parent of an Indian child cannot waive the separate and independent ICWA rights of an Indian child’s tribe and that the trial court must maintain a documentary record including, at minimum, (1) the original or a copy of each actual notice personally served or sent via registered mail pursuant to 25 USC 1912(a) and (2) the original or a legible copy of the return receipt or other proof of service showing delivery of the notice.1 Finally, we hold that the proper remedy for an ICWA-notice violation is to conditionally reverse the trial court and remand for resolution of the ICWA-notice issue.

Briefs are here and here.