Maine LD 307 — Data Center AI Moratorium (VETOED)
ME · Me. LD 307 (2026) — vetoed Apr. 24, 2026
Maine LD 307 would have imposed a moratorium on municipal and state permitting of data centers with a load of 20 megawatts or more until November 1, 2027. Governor Mills vetoed it on April 24, 2026, stating she would have signed the bill if it had included an exemption for a specific data center project in Jay, ME — not federal preemption concerns as previously stated.
Technical detail
LD 307 (2026) — would have imposed a statewide one-year moratorium on new data centers over 20 MW. Vetoed Apr. 24, 2026 by Gov. Janet Mills.
Who is protected: Maine residents from data-center infrastructure impact (would have)
Who must comply: Large data-center developers in Maine (would have)
Key facts
| Jurisdiction | ME |
|---|---|
| Level | State |
| Status | Vetoed |
| Protection strength | Unknown |
| Citation | Me. LD 307 (2026) — vetoed Apr. 24, 2026 |
| Enforced by | Would have been Maine Department of Environmental Protection |
| Private right of action | No — agency enforcement only |
| Topics | data-center siting and energy |
| Last verified | 2026-06-16 |
| Official source | LD 307 — Maine Legislature ↗ |
More AI rules in ME
- ME LD 1585 (FR limitation) · In effect
Related data-center siting and energy rules elsewhere
- Superior WI Data Center Moratorium (1-year) · In effect
- Dane County WI Hyperscale Data Center Moratorium · In effect
- Madison WI Data Center Moratorium (1-year) · In effect
- Manitowoc County WI Data Center Moratorium · In effect
- WA SB 5982 (Data Center / Clean Energy) · In effect
- Dayton OH data center moratorium (180-day, Apr 2026) · In effect
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