Colorado does not have any education or registration requirements for private process servers. Colorado Rule of Civil Procedure 4(d) provides as follows:
(d) By Whom Served. Process may be served within the United States or its Territories by any person whose age is eighteen years or older, not a party to the action. Process served in a foreign country shall be according to any internationally agreed means reasonably calculated to give notice, the law of the foreign country, or as directed by the foreign authority or the court if not otherwise prohibited by international agreement.
An Arkansas Supreme Court Order governs the regulation of private process servers in Arkansas. The Order requires appointment of private process servers by the administrative judge of a judicial district or any judge of a circuit court designated by the administrative judge. Ar. Sup. Ct. Admin. Order 20. The Order also sets out minimum qualifications, see Order 20(b), including:
(1) be not less than eighteen years old and a citizen of the United States;
(2) have a high school diploma or equivalent;
(3) not have been convicted of a crime punishable by imprisonment for more than one year or a crime involving dishonesty or false statement, regardless of the punishment;