SB 78 Wisconsin Senate · 2025-2026 Regular Session

Relating to: the distribution and labeling of fertilizers and soil or plant additives produced from manure. (FE)

SB 78 modifies labeling and testing rules for fertilizers and soil additives made from manure compost or vermicompost. It allows producers to use "typical analysis" (an average nutrient analysis) instead of the standard "guaranteed analysis" for claims about plant nutrients and beneficial substances on labels. The bill also exempts these compost-based products from a requirement that mixed fertilizers must contain at least 24% combined nitrogen, phosphate, and potash. This simplifies regulatory compliance for producers of compost-derived soil and plant products.
Bill status signed all 5 stages cleared
Introduction
Feb 2025
Committee Review
Jan 2026
Senate Passage
Apr 2025
Assembly Passage
Jan 2026
Signed into Law
Mar 2026
Introduced Feb 26, 2025 Signed Mar 27, 2026
Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
28
Key actions
5
Committee
2
Mar 27, 2026
Signed into law
Report approved by the Governor on 3-27-2026. 2025 Wisconsin Act 121
upper
Jan 22, 2026
Lower · Passed
Read a third time and concurred in
lower
Jan 20, 2026
Lower · Passed
Placed on calendar 1-22-2026 by Committee on Rules
lower
Apr 22, 2025
Upper · Passed
Read a third time and passed
upper
Apr 10, 2025
Upper · Passed
Report passage recommended by Committee on Agriculture and Revenue, Ayes 8, Noes 0
upper
Feb 26, 2025
Introduced
Introduced by Senator Jacque; cosponsored by Representatives Mursau, Behnke, Murphy, Subeck and Tusler
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
AJ
André Jacque
RRepublican
WI
1