(e)Certificate of service. The original of every document filed with the Commission and required to be served upon all parties to any proceedings, as well as participants if so directed by the Presiding Officer, shall be accompanied by a certificate of service signed by the party making service, stating that such service has been made upon each party and participant to the proceedings. Certificates of service may be in substantially the following form: I hereby certify that I have served the attached document upon all parties and participants of record in these proceedings by mailing, postage prepaid, (or by delivering in person) a copy to each on
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