Scope
2025 Wisconsin Senate Bill 843, as introduced, would have created ss. 196.20(10), 196.492 and 299.70 of the statutes relating to certain requirements related to data centers. The Senate Committee on Utilities, Technology and Tourism recommended passage as amended on 13 March 2026 (Ayes 3, Noes 2), and per the official history it failed to pass pursuant to Senate Joint Resolution 1 on 23 March 2026.
- Geographic scope
- Wisconsin
- Jurisdiction
- State
- Authority type
- Legislature
- Issuing authority
- Wisconsin Legislature
Dates
- Adopted
- No adoption day is recorded
- Effective
- Never took effect (did not pass)
- Scheduled expiration
- None scheduled
- Ended
- 23 March 2026
- Completion condition
- None stated
- Source document
- The source page states no document date
- Last checked
- 23 September 2026 (earlier than tracker date 5 October 2026; not an automatic status change)
Summary
Wisconsin Senate Bill 843 of the 2025-2026 session proposed requirements related to data centers and was the Senate companion of Assembly Bill 840. It was introduced on 15 January 2026, and a Senate committee recommended passage as amended on 13 March 2026. The official bill history records that it failed to pass pursuant to Senate Joint Resolution 1 on 23 March 2026, so it did not become law.
What this does not establish
- The record relies on the official bill history; neither the introduced text nor the Senate substitute amendments were analyzed.
- The history records no floor vote on this bill.
- Companion 2025 Assembly Bill 840 is a separate record.
Unresolved questions
None recorded.
Relationships
Supersession means a later instrument replaces the earlier legal effect. Repeal links identify the repeal instrument and the measure it ends. A later implementation or related letter is not treated as a replacement unless the record says so.
- Related, not a replacement Assembly Bill 840 (2025) on data center energy and water requirements (did not pass) (Did not pass)
Sources
https://docs.legis.wisconsin.gov/2025/proposals/reg/sen/bill/sb843