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Bills from the 2025–26 session

Senate Bill 434

Transparency and regulation of prior authorization requirements under health insurance plans. (FE)

Topics: Insurance: Commissioner, Office of, Insurance: Health, Medical service

Stopped in committee

It had a but no committee vote, so it never came up for a vote. The last day for votes this session was Mar 19, 2026. To try again, a lawmaker would have to start a new bill.

  1. Introduced, passed

    Sep 29, 2025

  2. Committee, stopped here

    Stopped here. It had a hearing but no committee vote.

  3. Senate vote, not reached

  4. Assembly vote, not reached

  5. Governor, not reached

  6. Law, not reached

Latest entry in the official record, Mar 23, 2026: “Failed to pass pursuant to ⁠”

It sat with the Senate Committee on Insurance, Housing, Rural Issues and Forestry.

Read the bill

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The same bill was also filed in the Assembly as AB 432. That version died when the session ended.

What it would have done

Summary by the , the Legislature's nonpartisan drafting office. It's their wording, not ours.

This bill establishes several disclosure and regulatory requirements for prior authorizations for health care services under health insurance policies and plans. Under the bill, “prior authorization” is defined to mean the process by which utilization review entities determine the medical necessity or medical appropriateness of an otherwise covered health care service prior to the rendering of the health care service.

First, this bill requires that utilization review entities ensure that all adverse determinations are made by a physician, physician assistant, or advanced practice registered nurse who may issue prescription orders and that the physician, physician assistant, or advanced practice registered nurse makes the adverse determination under the clinical direction of one of the utilization review entity’s medical directors who is responsible for the provision of health care services provided to enrollees in this state. An adverse determination is a decision by a utilization review entity that health care services provided or proposed to be provided to an enrollee are not medically necessary, or are experimental or investigational, and that benefit coverage is therefore denied, reduced, or terminated.

Read the full summary

Further, this bill provides that a utilization review entity must render an authorization or adverse determination within 72 hours of obtaining all necessary information to render the authorization or adverse determination. If the health care service requiring prior authorization is an urgent health care service, the bill instead requires that a utilization review entity render an authorization or adverse determination for the urgent health care service not later than 24 hours after receiving all necessary information to render the authorization or adverse determination. This bill provides that authorizations are valid for no less than one year from the date that a health care provider receives the authorization and that authorizations must remain effective regardless of any changes in form, dosage, or method of administration for a prescription drug prescribed by the health care provider and regardless of any changes in frequency, extent, or duration for a health care service provided by the health care provider. This bill further provides that an authorization for a health care service that is a treatment of a chronic or long-term care condition must remain valid for the duration of the treatment.

This bill provides that if an enrollee begins receiving health care services under a new health insurance plan, a utilization review entity must, upon receipt of sufficient information documenting a previous authorization rendered to the enrollee from a previous utilization review entity, accept the authorization rendered to the enrollee by the previous utilization review entity for at least 90 days of the enrollee’s coverage under the new health insurance plan. During this grace period, a utilization review entity may perform its own prior authorization. If there is a change in coverage of, or utilization review criteria for, a previously authorized health care service, the change in coverage or utilization review criteria may not affect an enrollee who was rendered an authorization before the effective date of the change for the remainder of the enrollee’s plan year.

Finally, this bill prohibits a utilization review entity from denying payment for a health care service that has received authorization unless the health care provider that performed the health care service knowingly and materially misrepresented the health care service to the utilization review entity with the intent to deceive and to obtain an unlawful payment or the enrollee was not eligible for coverage on the day that the health care service was performed.

This proposal may contain a health insurance mandate requiring a social and financial impact report under s. 601.423, stats.

Who's behind it

3 senators are its ⁠. All 3 are Republicans.

8 more lawmakers ⁠.

See all 11 names

Authors (3)

Signed on in support (8)

What it would cost

State agencies filed a . Each opens as a PDF from the Legislature.

What happened

  1. Mar 23, 2026

    The session ended, and the bill died with it.

  2. Dec 8, 2025

    1 more senator signed on in support.

  3. Oct 29, 2025

    The committee held a public hearing.

  4. Oct 15, 2025

    A state agency sent in its estimate of the cost.

  5. Oct 13, 2025

    A state agency sent in its estimate of the cost.

  6. Oct 8, 2025

    A state agency sent in its estimate of the cost.

  7. Oct 2, 2025

    “Commissioner of Insurance report received pursuant to s.601.423(2), Wisconsin Statutes” (the official wording)

  8. Sep 29, 2025

    Sent to the Senate Committee on Insurance, Housing, Rural Issues and Forestry.

  9. Sep 29, 2025

    Introduced in the Senate.

See the official record, word for word
  1. Sep 29, 2025 · Senate

    Introduced by Senators Cabral-Guevara, Jacque and Nass; cosponsored by Representatives Dittrich, Behnke, Goeben, Kreibich, Maxey, Mursau and Palmeri

  2. Sep 29, 2025 · Senate

    Read first time and referred to Committee on Insurance, Housing, Rural Issues and Forestry

  3. Oct 2, 2025 · Senate

    Commissioner of Insurance report received pursuant to s.601.423(2), Wisconsin Statutes

  4. Oct 8, 2025 · Senate

    Fiscal estimate received

  5. Oct 13, 2025 · Senate

    Fiscal estimate received

  6. Oct 15, 2025 · Senate

    Fiscal estimate received

  7. Oct 29, 2025 · Senate

    Public hearing held

  8. Dec 8, 2025 · Senate

    Senator Larson added as a coauthor

  9. Mar 23, 2026 · Senate

    Failed to pass pursuant to Senate Joint Resolution 1

Terms on this page

Committee

A small group of lawmakers that looks at a bill first. Most bills never leave committee.

More in the glossary

Public hearing

A meeting where anyone can speak to a committee about a bill, or send written comments.

More in the glossary

Senate Joint Resolution 1

The session's calendar. Any bill not passed by its last voting day dies.

Official term: Failed to pass pursuant to SJR 1. More in the glossary

Legislative Reference Bureau

The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.

Official term: LRB analysis. More in the glossary

Author

A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.

Official term: Author, coauthor. More in the glossary

Signed on in support

Lawmakers who back a bill without being one of its authors, often from the other chamber.

Official term: Cosponsor. More in the glossary

Cost estimate

A state agency's estimate of what a bill would cost or save.

Official term: Fiscal estimate. More in the glossary

From the Wisconsin Legislature's official record, checked Sep 15, 2026. See the source

Committee

A small group of lawmakers that looks at a bill first. Most bills never leave committee.

Public hearing

A meeting where anyone can speak to a committee about a bill, or send written comments.

Senate Joint Resolution 1

The session's calendar. Any bill not passed by its last voting day dies.

Official term: Failed to pass pursuant to SJR 1

Legislative Reference Bureau

The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.

Official term: LRB analysis

Author

A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.

Official term: Author, coauthor

Signed on in support

Lawmakers who back a bill without being one of its authors, often from the other chamber.

Official term: Cosponsor

Cost estimate

A state agency's estimate of what a bill would cost or save.

Official term: Fiscal estimate