The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Legislative action date (2026-01-01) tracked by AI Data Center Legislation Tracker.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most. A picture that shows something else, or shows it badly, is looked at too, and moved down or replaced.
Kansas SB 400 would require data centers to use closed-loop cooling systems (no water evaporation) and authorize municipalities, local district attorneys, and the state attorney general to sue for injunctions against violators. Introduced as part of the 2026 wave of state-level data center water/energy regulation legislation. Kansas is shifting focus from incentives (SB 98 passed in 2025 created a hyperscale sales tax exemption) to environmental regulation. The Kansas City Council changed zoning in January 2026 to make data centers harder to build, signaling local-level pushback complementing state legislation. VERIFIED 2026-05-26: SB 400 (closed-loop cooling / AG enforcement) died in committee when Kansas adjourned sine die April 11, 2026.