The standards must prohibit an officer, employee, or agent (including a subcontractor) from participating in the review, analysis, or inspection of trust transactions involving an entity in which such persons have a direct financial interest or an employment relationship. It must also prohibit such officers, employees, or agents from accepting any gratuity, favor, or anything of more than nominal value, from a party (other than the Indian tribe) with an interest in the trust transactions under review. Such standards must also provide for sanctions or remedies for violation of the standards.
25 C.F.R. § 900.235