Scope
House Bill 6138 of 2026 would create the data center water regulation act. A person could not begin construction or operation of a data center unless it will use a closed-loop cooling system or only water sourced from a municipal water system, and data centers starting construction or operation after the act's effective date would have to keep meeting one of those requirements. The bill is tie-barred to other 2026 data center bills. It was introduced and referred to the House Committee on Government Operations on 25 June 2026, with no later action recorded as of 23 September 2026.
- Geographic scope
- Michigan
- Jurisdiction
- State
- Authority type
- Legislature
- Issuing authority
- Michigan Legislature
Dates
- Adopted
- No adoption day is recorded
- Effective
- Not enacted
- Scheduled expiration
- None scheduled
- Ended
- Not recorded as ended
- Completion condition
- None stated
- Source document
- The source page states no document date
- Last checked
- 5 October 2026
Summary
House Bill 6138 of the 2025-2026 Michigan session would require new data centers to use closed-loop cooling or only municipal water, with Public Service Commission rulemaking and civil sanctions. It was introduced and referred to the House Committee on Government Operations on 25 June 2026. It is a proposal, not law.
What this does not establish
- Only the introduced text was opened; enforcement and rulemaking sections are not restated.
- The bill takes effect only together with the tie-barred data center bills.
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.
- No related action is recorded.
Sources
https://legislature.mi.gov/Bills/Bill?ObjectName=2026-HB-6138
- House Bill 6138 of 2026, data center water regulation act, introduced text bill text quoted for scope