(a) Filing. All documents submitted to the Administrative Review Board (Board) shall be filed in accordance with 29 CFR part 26.

(b) Computation of time for delivery. Documents are not deemed filed with the Board until actually received by that office. All documents, including documents filed by mail, must be received by the Board either on or before the due date.

(c) Manner and proof of service. A copy of all documents filed with the Board shall be served upon all other parties involved in the proceeding. Service under this section shall be in accordance with 29 CFR part 26.