(a) Whenever a Party is required or permitted to file any document, it shall be filed in the Sacramento office of the Office of Administrative Hearings together with proof of service of a copy on all other Parties, unless filing prior to service is authorized for good cause by the Office of Administrative Hearings.

(b) Except for subpoenas which may be served by the same methods as in civil actions, service of documents between Parties may be made in the manner provided in Code of Civil Procedure Section 1013, except that a form of mailing providing for a return receipt which proves the date of delivery or a method provided for service of a summons in a civil action must be used for delivery of the following: