The applicant and the Secretary may agree on a proposed settlement of the award before final action on the application, either in connection with a settlement of the underlying adversary adjudication, or after the adversary adjudication has been concluded, in accordance with the Commission's standard settlement procedures as set forth in § 2200.120 of this chapter. If a prevailing party and the Secretary agree on a proposed settlement of an award before an application has been filed, the application shall be filed with the proposed settlement. If a proposed settlement of an underlying proceeding provides that each side shall bear its own expenses and the settlement is accepted, no application may be filed.