Data centers and digital-currency mining facilities may operate only with a Special Use Permit with restrictions in the A-1 Agricultural, R-1 Rural Residential, M-1 Light Industrial, or M-2 Heavy Industrial districts; the ordinance does not authorize them in other zoning districts. (allowed districts)

A facility cannot be developed without site-plan review and verification by the planning and zoning department that all ordinance requirements have been met. (site plan review and verification)

Applicants must obtain a Special Use Permit with restrictions, and the special-use process requires review by the Board of Adjustment under the county's special-use-permit procedures, including a site plan and public hearing process. (Special Use Permits)

The facility must comply with the applicable district setbacks in Section 100.17, which vary by zoning district and use. (required setbacks)

Facility noise may not exceed 60 dBA continuously during the day or 50 dBA continuously at night at any occupied residential or commercial building. (noise limits)

Within 30 days after startup, the applicant must provide the county zoning administrator with noise results from a certified professional engineer; the applicant must pay the report's cost. (30-day noise report requirement)

All servers, computers, processors, materials, and equipment must be enclosed within the facility structure. (enclosure requirement)

Cargo containers may be used only if they are in good condition; railroad cars and semi-truck trailers are prohibited. (container restrictions)

Each facility must display 24-hour emergency contact signage identifying the company, its phone number, and the power company, and every site must have a Monona County 911 address. (emergency signage and 911 address requirement)

A permit application must include an emergency response plan, an externally located and marked emergency termination switch, and a fire detection or suppression system for the structures. (emergency and fire-safety requirements)

A decommissioning plan must be submitted with the facility's permit application, creating an additional planning requirement before approval. (decommission plan requirement)

The facility remains subject to the county's general zoning enforcement provisions: violations can result in civil penalties of up to $750 for a first offense and up to $1,000 for each repeat offense, with each day a violation continues treated as a repeat offense; the county may also seek abatement or injunctive relief. (civil penalties)

Data center and digital currency mining facilities are expressly allowed by special-use permit with restrictions in the A-1 Agricultural, R-1 Rural Residential, M-1 Light Industrial, and M-2 Heavy Industrial districts. (Facilities will be allowed with a Special Use permit with restrictions)

Cargo containers may be used for data center facilities if they are in good condition, providing an approved alternative to constructing all facilities in conventional buildings. (The use of cargo containers is permissible)

The required certified-engineer noise report is due within 30 days after the facility starts operating, rather than before permitting or startup, allowing the facility to begin operation before submitting the report. (This report is due within thirty (30) days after the start-up of the facility)