Wis. Admin. Code Department of Financial Institutions DFI-WCA 1.352
The creditor may satisfy an obligation to release any security interest under s. 422.306(4), Stats., by either 1) recording the necessary instrument and forwarding the same to the customer or designee by mail or by return on the instrument or 2) by delivering the necessary instrument fully completed and executed to the customer's designee, but in no instance to the customer, for recording. The recording or filing fee may be treated as an official fee within the meaning of s. 421.301(26), Stats. Where the transaction is secured by a lien on a motor vehicle and the title is not in the possession of the creditor, the creditor may satisfy the requirements of this subsection by mailing a completed release of lien to the customer together with an envelope addressed to the department of motor vehicles, bureau of vehicle registration, postage prepaid, and a letter of instruction advising the customer to forward the release and title to the department to obtain release of the secured party's interest.
Wis. Admin. Code Department of Financial Institutions DFI-WCA 1.352