Skip to content

Bills · 2025-2026 Regular Session

AB 172

Died at session end Official bill text Atom feed

Relating to: consumer data protection and providing a penalty. (FE)

Agriculture trade and consumer protection department of Consumer protection Data processing — Privacy issues Justice department of Ordinance

  1. Introduced, stopped here
  2. Passes Assembly, not reached
  3. Passes Senate, not reached
  4. Governor signs, not reached
  5. Law, not reached

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

This bill establishes requirements for controllers and processors of the personal data of consumers. The bill defines a “controller” as a person that, alone or jointly with others, determines the purpose and means of processing personal data, and the bill applies to controllers that control or process the personal data of at least 100,000 consumers or that control or process the personal data of at least 25,000 consumers and derive over 50 percent of their gross revenue from the sale of personal data. Under the bill, “personal data” means any information that is linked or reasonably linkable to an individual except for publicly available information.

The bill provides consumers with the following rights regarding their personal data: 1) to confirm whether a controller is processing the consumer’s personal data and to access the personal data; 2) to correct inaccuracies in the consumer’s personal data; 3) to require a controller to delete personal data provided by or about the consumer; 4) to obtain a copy of the personal data that the consumer previously provided to the controller; and 5) to opt out of the processing of the consumer’s personal data for targeted advertising; the sale of the consumer’s personal data; and certain forms of automated processing of the consumer’s personal data. These rights are subject to certain exceptions specified in the bill. Controllers may not discriminate against a consumer for exercising rights under the bill, including by charging different prices for goods or providing a different level of quality of goods or services.

A controller must establish one or more secure and reliable means for consumers to submit a request to exercise their consumer rights under the bill. Such means must include a clear and conspicuous link on the controller’s website to a webpage that enables a consumer or an agent of a consumer to opt out of the targeted advertising or sale of the consumer’s personal data and, on or after July 1, 2028, an opt-out preference signal sent, with a consumer’s intent, by a platform, technology, or mechanism to the controller indicating the consumer’s intent to opt out of any processing of the consumer’s personal data for the purpose of targeted advertising or sale of the consumer’s personal data.

The bill requires controllers to respond to consumers’ requests to invoke rights under the bill without undue delay. If a controller declines to take action regarding a consumer’s request, the controller must inform the consumer of its justification without undue delay. The bill also requires that information provided in response to a consumer’s request be provided free of charge once annually per consumer. Controllers must also establish processes for consumers to appeal a refusal to take action on a consumer’s request. Within 60 days of receiving an appeal, a controller must inform the consumer in writing of any action taken or not taken in response to the appeal, including a written explanation of the reasons for its decisions. If the appeal is denied, the controller must provide the consumer with a method through which the consumer can contact the Department of Agriculture, Trade and Consumer Protection to submit a complaint.

Under the bill, a controller must provide consumers with a privacy notice that discloses the categories of personal data processed by the controller; the purpose of processing the personal data; the categories of third parties, if any, with whom the controller shares personal data; the categories of personal data that the controller shares with third parties; and information about how consumers may exercise their rights under the bill. Controllers may not collect or process personal data for purposes that are not relevant to or reasonably necessary for the purposes disclosed in the privacy notice. The bill’s requirements do not restrict a controller’s ability to collect, use, or retain data for conducting internal research, effectuating a product recall, identifying and repairing technical errors, or performing internal operations that are reasonably aligned with consumer expectations or reasonably anticipated on the basis of a consumer’s relationship with the controller.

Persons that process personal data on behalf of a controller must adhere to a contract between the controller and the processor, and such contracts must satisfy certain requirements specified in the bill. The bill also requires controllers to conduct data protection assessments related to certain activities, including processing personal data for targeted advertising, selling personal data, processing personal data for profiling purposes, and processing sensitive data, as defined in the bill. DATCP may request that a controller disclose a data protection assessment that is relevant to an investigation being conducted by DATCP.

DATCP and the Department of Justice have exclusive authority to enforce violations of the bill’s requirements. A controller or processor that violates the bill’s requirements is subject to a forfeiture of up to $10,000 per violation, and DATCP or DOJ may recover reasonable investigation and litigation expenses incurred. During the time between the bill’s effective date and July 1, 2031, before bringing an action to enforce the bill’s requirements, DATCP or DOJ must first provide a controller or processor with a written notice identifying the violations. If within 30 days of receiving the notice the controller or processor cures the violation and provides DATCP or DOJ with an express written statement that the violation is cured and that no such further violations will occur, then DATCP or DOJ may not bring an action against the controller or processor.

The bill also prohibits cities, villages, towns, and counties from enacting or enforcing ordinances that regulate the collection, processing, or sale of personal data.

What it would cost

Fiscal estimates filed by state agencies, as official PDFs

Sponsors

Introduced by: Allen (R) , Armstrong (R) , Behnke (R) , Dittrich (R) , Duchow (R) , Goeben (R) , Gustafson (R) , Knodl (R) , Kreibich (R) , Krug (R) , Kurtz (R) , Maxey (R) , Melotik (R) , Moses (R) , Murphy (R) , Mursau (R) , Nedweski (R) , O'Connor (R) , Penterman (R) , Piwowarczyk (R) , Pronschinske (R) , Snyder (R) , Sortwell (R) , Steffen (R) , Tittl (R) , Tusler (R) , Wittke (R) , Zimmerman (R)

4 cosponsors

Marklein (R) , Nass (R) , Quinn (R) , Roys (D)

Registered lobbying interests · 28

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Votes

Assembly: Report passage recommended by Committee on State Affairs, Ayes 10, Noes 0

Passed 10–0 Jan 30, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Full history

  1. Apr 9, 2025 · Assembly

    Introduced by Representatives Zimmerman, Sortwell, Allen, Armstrong, Behnke, Dittrich, Duchow, Goeben, Gustafson, Knodl, Kreibich, Krug, Kurtz, Maxey, Melotik, Murphy, Mursau, Nedweski, O'Connor, Penterman, Piwowarczyk, Pronschinske, Snyder, Steffen, Tittl, Tusler, Wittke and Moses; cosponsored by Senators Quinn, Nass, Roys and Marklein

  2. Apr 9, 2025 · Assembly

    Read first time and referred to Committee on Consumer Protection

  3. Jun 24, 2025 · Assembly

    Fiscal estimate received

  4. Jan 16, 2026 · Assembly

    Withdrawn from committee on Consumer Protection and referred to committee on State Affairs pursuant to Assembly Rule 42 3(c)

  5. Jan 21, 2026 · Assembly

    Public hearing held

  6. Jan 28, 2026 · Assembly

    Executive action taken

  7. Jan 30, 2026 · Assembly

    Report passage recommended by Committee on State Affairs, Ayes 10, Noes 0

  8. Jan 30, 2026 · Assembly

    Referred to committee on Rules

  9. Mar 23, 2026 · Assembly

    Failed to pass pursuant to Senate Joint Resolution 1