Wis. Admin. Code Trans § Trans 178.08
If an assessed fee has not been paid when due and the person has not filed a petition for redetermination within 30 days after the date of notice of a completed audit, the fee becomes delinquent and subject to collection under s. Trans 178.09. The department shall send a notice of delinquency and revocation to the last known address of the registrant advising of the immediate revocation of UCR registration, fuel tax licensing, and vehicle registration privileges, or authority to operate. The department may revoke a registration under this chapter if the registrant fails to comply with the provisions of this chapter or the provisions of the UCR Agreement. The department shall send a notice of revocation to the registrant's mailing address of record. Registration revoked under this chapter shall remain revoked until the reason for the revocation has been removed. The department may revoke, suspend, or refuse any registration, certificate, or permit issued by the department upon revocation of the person's UCR registration.
Wis. Admin. Code Department of Transportation § Trans 178.08