Me. Rev. Stat. tit. 19-A, § 2658

Service under this subchapter must be made in the manner provided for service of summons by the Maine Rules of Civil Procedure, Rule 4. For purposes of this section, this service must be deemed to be an action pursuant to Chapter XIII of the Maine Rules of Civil Procedure. When the department is providing child support services, personal service within the State of an income withholding order may be made by an authorized representative of the commissioner.