Data centers are allowed only as conditional uses in the ID-3 General Industrial District, requiring approval by the Zoning Administrator and compliance with special data-center standards.

Before construction, relocation, enlargement, alteration, or demolition of a data-center structure, a zoning permit is required; a certificate of zoning compliance is required before the property may be used or occupied.

Cooling systems must use air-cooled closed-loop systems, chip-immersion cooling, or similar low-water-use systems; groundwater may not be used for cooling unless specifically authorized by County Council.

Data-center structures must be at least 500 feet from adjoining industrial or commercial property lines and 1,000 feet from rural, residential, or agricultural districts or property lines, or from a public road adjacent to those areas. County Council may approve reductions of up to 25 percent, but applicable noise limits then decrease by 5 dBA.

Required setbacks must remain undisturbed permanent buffers where wooded. Where only partially wooded, the applicant must add a 50-foot densely planted evergreen buffer with trees at least 8 feet tall and a 10-foot interior berm along property lines.

Generators may be used only for testing or emergency backup power, must be insulated and fully enclosed, and periodic testing is limited to 10:00 a.m. through 5:00 p.m.

Operational noise is limited to 60 dBA during the day and 50 dBA at night, or the pre-construction ambient level, whichever is greater; data-center noise generally may not exceed ambient noise by more than 5 dBA without County Council approval. Measurements must be taken over 30 minutes at 300 feet from the data center.

Applicants must submit a pre-construction noise-impact study by a qualified acoustical consulting firm and a post-construction noise study within 30 days after commissioning. The County may require additional sound studies or measurements at the owner's or lessee's expense.

Rooftop mechanical equipment must be screened by acoustical barriers, and the applicant must work with a qualified acoustical consultant to develop a sound-dampening plan.

Outdoor nighttime lighting must be limited to the minimum needed for reasonable security, shielded from surrounding properties, and approved through a lighting plan by the Zoning Administrator.

Data centers may not produce ground vibration that is discernible without instruments beyond the property line.

Data centers must comply with ID-3 height rules and may not exceed 100 feet in height.

If a data center ceases operations for 30 consecutive days without providing the County with a plan or corrective measures, the Zoning Administrator may require its equipment to be dismantled and completely removed within 180 days.

The Zoning Administrator may issue a written stop-work order for violations of the data-center standards; violations may result in fines of up to $5,000 per day, imprisonment for up to 30 days, or both.

A data center must provide one parking space for each employee on the maximum shift.

Allows data centers as a conditional use in the ID-3 General Industrial District, subject to the listed conditions and supplemental design standards. Approval may be issued by the Zoning Administrator rather than requiring a special-exception hearing. Data centers may be permitted by the Zoning Administrator as a Conditional Use

Allows a data center use to include on-site energy generation. Data centers housing computer servers, systems, or related services, including on-site energy generation

Allows the County Council to approve reductions of required data-center setbacks by up to 25 percent. If reduced, the applicable noise limits become 5 dBA stricter. Setbacks may be allowed to be reduced by up to 25% upon approval by County Council

Permits data centers to reach a maximum height of 100 feet, compared with the ordinary ID-3 district maximum of 50 feet. Data centers must comply with the ID-3 district regulations for height, with a maximum height of one hundred (100) feet

Permits data-center generators for testing and emergency backup power, provided they are fully enclosed and insulated, with testing allowed only between 10:00 a.m. and 5:00 p.m. all generators must be used only for testing and for backup power in case of an emergency

In the ID-3 district, uses other than utility substations and water towers have no specified minimum lot area, and required street frontage may be satisfied through access specified in the conditions. Other: As specified in conditions, or none

Allows a lawfully established data center that later becomes nonconforming to continue operating under the ordinance's nonconformity rules. A certified nonconforming structure may also be repaired, removed, or replaced in the same location with a structure of the same type and size, or one that reduces the nonconformity, subject to applicable building codes. may be continued in use although it does not conform