Wis. Stat. § 19.69: Computer matching.

(1) Matching specification. A state authority may not use or allow the use of personally identifiable information maintained by the state authority in a match under a matching program, or provide personally identifiable information for use in a match under a matching program, unless the state authority has specified in writing all of the following for the matching program:

(a) The purpose and legal authority for the matching program.

(b) The justification for the program and the anticipated results, including an estimate of any savings.

(c) A description of the information that will be matched.

(2) Copy to public records board. A state authority that prepares a written specification of a matching program under sub. (1) shall provide to the public records board a copy of the specification and any subsequent revision of the specification within 30 days after the state authority prepares the specification or the revision.

(3) Notice of adverse action.

(a) Except as provided under par. (b), a state authority may not take an adverse action against an individual as a result of information produced by a matching program until after the state authority has notified the individual, in writing, of the proposed action.

(b) A state authority may grant an exception to par. (a) if it finds that the information in the records series is sufficiently reliable.

(4) Nonapplicability. This section does not apply to any matching program established between the secretary of transportation and the commissioner of the federal social security administration pursuant to an agreement specified under s. 85.61 (2).