25 CFR §522.4

1. (a)No later than 90 days after the submission of any amendment to a class II ordinance or resolution the Chair shall approve the amendment if the Chair finds that:
   1. (1)A tribe meets the amendment submission requirements of § 522.3(b); and
   2. (2)The amendment complies with § 522.5(b).
2. (b)No later than 90 days after a tribe submits any amendment to a class II ordinance for approval, the Chair may disapprove the amendment if the Chair determines—
   1. (1)A tribe failed to comply with the amendment submission requirements of § 522.3; or
   2. (2)The amendment does not comply with § 522.5(b).
3. (c)No later than 90 days after the submission of any amendment to a class III ordinance or resolution, the Chair shall approve the amendment if the Chair finds that—
   1. (1)A tribe meets the amendment submission requirements of § 522.3(b); and
   2. (2)The amendment complies with § 522.7(b) and (c).
4. (d)No later than 90 days after a tribe submits any amendment to a class III ordinance for approval, the Chair may disapprove the amendment if the Chair determines that—
   1. (1)A tribal governing body did not adopt the amendment in compliance with the governing documents of the tribe;
   2. (2)The amendment does not comply with § 522.7(b) and (c); or
   3. (3)A tribal governing body was significantly and unduly influenced in the adoption of the amendment by a person having a direct or indirect financial interest in a management contract, a person having management responsibility for a management contract, or their agents.
5. (e)The Chair shall notify a tribe of its right to appeal a disapproval under part 582 of this chapter. A disapproval shall be effective immediately unless appealed under part 582 of this chapter.