Rule 302 - Proof of service (a) Except as may be otherwise provided in the Wyoming Rules of Civil Procedure, the Wyoming Rules of Criminal Procedure, or by order of court, proof of service of every document to be served may be made: (1) By an acknowledgement of service, signed by the attorney for a party or signed and acknowledged by the party; (2) By an affidavit of the person making service; (3) By a certificate of service appended to the paper to be filed and signed by the attorney for the party making service; or, (4) By entry upon the appearance docket showing service under Rule 5(b), W.R.C.P. (b) The proof shall be filed with the court promptly and in any event before action is to be taken on the matter by the court.