Wis. Admin. Code § ATCP 16.10
(1) Timely action on license application. The department shall grant or deny a license application under s. ATCP 16.06 within 30 business days after all of the following have occurred:
(2) Denying, suspending or revoking a license.
(b) Whenever the department denies, suspends, or revokes a license under par. (a), the department shall give the applicant or license holder a written notice that does all of the following:
(4) Summary license suspension.
(a) The department may by written notice, without prior notice or hearing, suspend a license issued under s. ATCP 16.02 (1) if the department finds any of the following based on reasonable evidence:
History: CR 10-100: cr. Register May 2011 No. 665, eff. 6-1-11.