524.2—Limited participation by an entity other than a tribe.
(a)
An entity other than a tribe may request to participate in an appeal of a disapproval under part 522 or part 523 of this chapter by filing a written submission. Such written submission shall:
(2)
The reasons why the action of the Chairman in disapproving an ordinance, resolution or amendment may be in error or the reasons why the Chairman's disapproval should be upheld by the Commission. The reasons shall address the approval requirements under §§ 522.4, 522.5, 522.6, 522.7, 523.2 of this chapter.
(b)
The Commission shall forward a copy of a request under paragraph (a) of this section to the party of record under § 524.1 of this part.
(c)
The Commission shall review a request under this section and timely notify the requester of its determination. Such notification shall supply the reasons for the determination. The Commission shall also notify the party of record on appeal under § 524.1 of its determination.
(d)
The Commission shall limit the extent of participation by an entity other than a tribe to one written submission as described under paragraph (a) of this section, unless the Commission determines further participation would substantially contribute to the record.