Senate Bill 645
Serving margarine as a substitute for butter in certain circumstances
Topics: Dairy product: Regulation, Hospitals and health care facilities, Oleomargarine, Prison, School: Lunch
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.
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Introduced, passed
Nov 14, 2025
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Committee, stopped here
Stopped here. It had a hearing but no committee vote.
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Senate vote, not reached
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Assembly vote, not reached
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Governor, not reached
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Law, not reached
Latest entry in the official record, Mar 23, 2026: “Failed to pass pursuant to ”
It sat with the Senate Committee on Licensing, Regulatory Reform, State and Federal Affairs.
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The same bill was also filed in the Assembly as AB 664. That version died when the session ended.
Terms on this page
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. 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
What it would have done
Summary by the , the Legislature's nonpartisan drafting office. It's their wording, not ours.
Current law generally prohibits serving margarine as a substitute for table butter to students, patients, or inmates of a state institution. Current law also prohibits the serving of colored margarine at a public eating place as a substitute for table butter unless the margarine is ordered by the customer. Current law does not define “table butter.” A person who violates these prohibitions is subject to specified criminal penalties.
This bill modifies these prohibitions so that they apply to “butter” rather than “table butter.” The bill also modifies the prohibition on serving margarine as a substitute for butter to students by expanding the prohibition to apply to students at public, private, and tribal schools, but also creates an exception for margarine that is ordered by the student or for the student by the student’s parent or guardian. In addition, the bill prohibits the use of margarine as a substitute for butter in meals prepared for service to students at public, private, and tribal schools, except when necessary for the health of a specific student as directed by the student’s health care provider.
Who's behind it
2 senators are its . All 2 are Republicans.
14 more lawmakers .
See all 16 names Hide the names
Authors (2)
- Rachael Cabral-Guevara · Republican, Senate
- Howard Marklein · Republican, Senate
Signed on in support (14)
- Scott Allen · Republican, Assembly
- Elijah Behnke · Republican, Assembly
- Lindee Brill · Republican, Assembly
- Calvin Callahan · Republican, Assembly
- Cindi Duchow · Republican, Assembly
- Russell Goodwin · Democrat, Assembly
- Rick Gundrum · Republican, Assembly
- Vinnie Miresse · Democrat, Assembly
- Clint Moses · Republican, Assembly
- Dave Murphy · Republican, Assembly
- Jeff Mursau · Republican, Assembly
- Todd Novak · Republican, Assembly
- Travis Tranel · Republican, Assembly
- Chuck Wichgers · Republican, Assembly
What happened
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Mar 23, 2026
The session ended, and the bill died with it.
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Jan 27, 2026
The committee held a public hearing.
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Nov 14, 2025
Sent to the Senate Committee on Licensing, Regulatory Reform, State and Federal Affairs.
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Nov 14, 2025
Introduced in the Senate.
See the official record, word for word Hide the official record
- Nov 14, 2025 · Senate
Introduced by Senators Marklein and Cabral-Guevara; cosponsored by Representatives Novak, Tranel, Gundrum, Allen, Behnke, Brill, Callahan, Duchow, Goodwin, Miresse, Moses, Murphy, Mursau and Wichgers
- Nov 14, 2025 · Senate
Read first time and referred to Committee on Licensing, Regulatory Reform, State and Federal Affairs
- Jan 27, 2026 · Senate
Public hearing held
- 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.
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. 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
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
Signed on in support
Lawmakers who back a bill without being one of its authors, often from the other chamber.
Official term: Cosponsor