Wis. Stat. § 343.345

The department shall restrict, limit or suspend a person’s operating privilege if the person is delinquent in making court-ordered payments of child or family support, maintenance, birth expenses, medical expenses or other expenses related to the support of a child or former spouse, or who fails to comply, after appropriate notice, with a subpoena or warrant issued by the department of children and families or a county child support agency under s. 59.53 (5) and related to paternity or child support proceedings, as provided in a memorandum of understanding entered into under s. 49.857.