Yes. A tribe that holds a certificate of self-regulation has a continuing duty to advise the Commission within three business days of any changes in circumstances that are material to the approval criteria in §518.5 and may reasonably cause the Commission to review and revoke the tribe's certificate of self-regulation. Failure to do so is grounds for revocation of a certificate of self-regulation. Such circumstances may include, but are not limited to, a change of primary regulatory official; financial instability; or any other factors that are material to the decision to grant a certificate of self-regulation.