Anne Arundel County has chosen a temporary regulatory pause instead of an outright data-center ban. The County Council unanimously approved a 15-month moratorium, preserving projects already in the pipeline while a new work study group examines possible permanent rules, The Baltimore Banner reported.
The decision leaves substantial room for existing development to continue. The moratorium does not affect facilities already under construction, exempts expansions of existing data centers, and allows certain building or adjacent-lot expansions by current operators, according to the Banner. The study group is expected to examine how other jurisdictions regulate the industry and recommend legislation before the pause expires; the moratorium could end earlier if that work is completed.
A compromise shaped by Fort Meade
The measure is narrower than the proposal initially under consideration. Council member Nathan Volke had introduced a broader measure that would have removed county code provisions governing data centers, from hyperscale facilities to smaller edge sites. Opposition from advocates associated with Fort George G. Meade helped make the economic and national-security implications part of the debate, the Banner reported.
That concern is tied to the installation's role in the regional defense and cybersecurity economy, not proof that data centers themselves account for its employment. Maryland Commerce's 2024-2025 employer table lists Fort George G. Meade as a major employer with 63,977 employees. The figure establishes the installation's economic weight while leaving the separate effects of data-center construction, operations and infrastructure for the county's study group to assess.
Maryland counties are testing different tools
Anne Arundel's action is best understood as one version of a broader regulatory experiment, rather than a uniform statewide policy. Montgomery County's council approved an 18-month moratorium on July 28, 2026, along with additional safeguards and a separate zoning measure prohibiting hyperscale data centers during the pause, according to Montgomery County government.
Calvert County adopted a shorter and more specific mechanism. Its commissioners unanimously approved a six-month moratorium on data-center site-plan approvals on Aug. 18, effective Aug. 28, and stopped accepting new site-plan applications during the pause, according to Calvert County. These comparisons show differences in duration, legal scope and treatment of new applications; they do not establish that the counties face identical infrastructure or economic conditions.
The policy questions ahead
The study group will be working within a larger electricity-planning debate. Maryland's Public Service Commission identified data-center development and electrification as factors likely to affect electricity planning during the 2024-2033 horizon. That statewide observation does not resolve Anne Arundel's local questions about transmission, substations, water, noise or land use, but it explains why the county's pause is focused on rules and infrastructure impacts rather than simply on whether the industry should exist.
Other jurisdictions offer possible regulatory models short of a ban. Loudoun County, Virginia, requires pre-construction and post-construction noise studies for data centers and sets maximum sound levels at receiving property lines, according to the county. Virginia Mercury also reported that Loudoun supervisors moved data centers from by-right permitting to conditional-use applications in spring 2025, creating more opportunity for public input: Virginia Mercury.
Anne Arundel's immediate outcome is therefore neither approval of unrestricted growth nor a final rejection of data centers. It is a deadline for deciding what conditions should govern future projects while protecting development already far enough along to fall outside the pause. The unresolved questions are the ones the work study group must answer: which projects should require additional review, what infrastructure impacts should be addressed locally, and whether permanent rules can balance Fort Meade's economic importance with residents' environmental and land-use concerns.
