MD Supreme Court blocks Frederick County DC zoning referendum

Frederick County, MD Data Center Zoning — Maryland Supreme Court Blocks Referendum
Frederick County, MD · Frederick County, Md. data center zoning referendum litigation — Md. Supreme Court, decided 2026-06-30 (written opinion pending at time of coverage)

Status
Blocked / in litigation
Applies to
N/A — procedural ruling on Frederick County's own zoning process.

The Maryland Supreme Court ruled June 30, 2026 that Frederick County's December 2025 approval of a 2,600-acre 'critical digital infrastructure overlay zone' for data centers is not subject to a citizen referendum under the county charter, upholding a lower court and blocking a ballot question more than 21,000 residents had petitioned for. The court also found the proposed ballot question itself legally deficient (unclear map depiction, incomplete ordinance text).

Who is protected: N/A — this entry tracks a court ruling on referendum procedure, not a protection for residents.

Legal detail

Maryland Supreme Court decision, 2026-06-30, affirming a Frederick County Circuit Court ruling that the county's December 2025 zoning ordinance creating a critical digital infrastructure overlay zone (CDI-OZ, ~2,600 acres, concentrating data centers north of Adamstown) is not referendum-eligible under the county charter. Written opinion was pending at publication. Justice Joseph Getty: public-hearing referendum efforts run 'like 500 steps behind' once land is secured and zoning negotiated. Distinct from the separately-tracked (placeholder) Frederick County 'Data Center Conditions Ordinance' (noise/water/generator conditions, introduced May 2026) — this entry concerns only the December 2025 zoning map's referendum-immunity ruling.

Key facts

JurisdictionFrederick County, MD
LevelCounty
CitationFrederick County, Md. data center zoning referendum litigation — Md. Supreme Court, decided 2026-06-30 (written opinion pending at time of coverage)
Topicsdata-center siting and energy
News reportMaryland Supreme Court blocks voter referendum on Frederick County data center zoning - technical.ly

Related data-center siting and energy rules elsewhere

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