In addition to any other requirement for service of process contained in Rule 4(l), M.R.Civ.P., the attorney general of the state of Montana is hereby designated as the person upon whom all process shall be served in actions under the provisions of this part.
Service Of Process Upon Attorney General
Mont. Code Ann. § 18-1-412, under Contract Actions Against the State.
Mont. Code Ann. § 18-1-412