(a) Copies of the decision of the Secretary shall be served upon the appellant and the Commissioner in the manner provided in § 97.403.

(b) When an appeal petition is dismissed, or when the time for appeal to the courts pursuant to the Act has expired and no such appeal or civil action has been filed, proceedings in the appeal shall be considered terminated as of the dismissal or expiration date, except in those cases in which the nature of the decision requires further action by the Commissioner. If the decision of the Secretary is appealed or a civil action has been filed pursuant to the Act, the decision of the Secretary will be stayed pending the outcome of the court appeal or civil action.