Mission Critical Projects Compliance in Wisconsin

Imagine spending hundred millions of dollars building a data center, only to discover during commissioning that a missing compliance requirement delays occupancy by six weeks.

Unfortunately, situations like this happen more often than many project teams realize.

Mission critical projects involve hundreds of interconnected systems, multiple regulatory agencies, and dozens of industry standards.

Imagine your team is days away from commissioning a new facility.

The switchgear has been installed. The generators are ready. Every contractor believes the project is on schedule.

Then a missing compliance requirement is discovered during final inspections.

Suddenly, occupancy is delayed. Contractors return to the site. Equipment must be modified. The project budget is growing, and everyone begins asking the same question:

“How did we miss this?”

For mission critical facilities, compliance isn’t paperwork. It’s what allows complex electrical, automation, and safety systems to operate reliably from the first day of operation.

Missing one requirement can not just delay schedules but also increase costs, and introduce operational risk long after construction is complete.

Whether you’re building a data center, expanding a manufacturing campus, or modernizing critical infrastructure in Wisconsin, understanding compliance early can save significant time and money.

For owners, contractors, engineers, and equipment suppliers, understanding these requirements early helps reduce surprises and keeps projects moving from design through startup.

This guide explains the major compliance requirements for mission critical projects in Wisconsin, the organizations involved, the standards you should know, and practical steps to help your project remain compliant throughout its lifecycle.

Why Compliance Matters More Than Ever

Mission critical facilities are designed with one primary objective: They cannot afford to fail. Unlike traditional commercial buildings, these facilities often operate continuously, supporting essential business operations or public services. Even a brief interruption can have significant consequences.

Examples include:

• Cloud computing facilities
• Artificial intelligence infrastructure
• Healthcare systems
• Pharmaceutical manufacturing
• Financial transaction processing
• Emergency communication centers
• Water and wastewater treatment plants
• Electrical substations
• Industrial manufacturing facilities with continuous production

For many organizations, a single hour of downtime can cost hundreds of thousands of dollars. For hyperscale cloud providers, the financial impact may reach millions of dollars depending on the workload being interrupted.

Compliance helps reduce these risks by ensuring that electrical systems, safety systems, backup power, fire protection, and control systems operate as intended before a facility begins operation.

It also provides confidence to insurance providers, investors, customers, utility companies, and regulatory agencies that the facility has been built according to recognized engineering practices.

What Is a Mission Critical Project?

A mission critical project is any facility where continuous operation is essential to business continuity, public safety, or critical infrastructure. These projects are designed with significantly higher standards for reliability, redundancy, maintainability, and resilience than conventional buildings.

Typical characteristics include:

• Redundant electrical distribution
• Multiple utility feeds
• Backup generators
• UPS systems
• Battery energy storage
• Automatic transfer switches
• Advanced monitoring systems
• Building automation
• Fire suppression systems
• Environmental monitoring
• Continuous commissioning
• Remote diagnostics

Rather than relying on a single electrical path, mission critical facilities typically incorporate multiple independent paths so maintenance or equipment failures do not interrupt operations.

This philosophy influences nearly every aspect of design, construction, commissioning, and long-term maintenance.

Common Mission Critical Facilities

Wisconsin has experienced significant growth in mission critical infrastructure over the past several years, driven by manufacturing expansion, cloud computing, artificial intelligence, and utility modernization.

Common examples include:

Data Centers

Modern data centers require continuous power, environmental controls, sophisticated automation, and rigorous commissioning before becoming operational.

Hospitals

Hospitals rely on emergency power systems, isolated electrical systems, life safety equipment, and highly regulated backup power infrastructure.

Pharmaceutical Manufacturing

Pharmaceutical production depends on controlled environments, validated automation systems, uninterrupted utilities, and documented compliance.

Food Processing Facilities

Many Wisconsin food manufacturers operate around the clock. Electrical failures can interrupt production, compromise food safety, and lead to substantial product losses.

Utility Infrastructure

Electrical substations, transmission facilities, and renewable energy installations require dependable control systems and carefully engineered protection schemes to maintain grid reliability.

Why Downtime Is So Expensive

Many people associate downtime only with lost production.
In reality, the financial impact is much broader.

A shutdown may result in:

• Lost manufacturing output
• Delayed customer deliveries
• Spoiled inventory
• Overtime labor
• Restart procedures
• Regulatory reporting
• Contract penalties
• Equipment damage
• Lost customer confidence

For data centers, downtime can also affect thousands of businesses simultaneously, making reliability one of the highest priorities throughout the design and construction process.

This is why compliance is not viewed merely as meeting code requirements. It forms the foundation for building resilient systems capable of operating safely and reliably under both normal and emergency conditions.

How Mission Critical Compliance Really Happens

Many people picture compliance as the final inspection that takes place just before a building opens. In reality, that’s one of the biggest misconceptions about mission critical projects.

By the time inspectors arrive on site, most compliance decisions have already been made.

Whether you’re building a data center, expanding a manufacturing facility, upgrading a utility substation, or constructing another mission critical facility, compliance begins long before the first piece of equipment is delivered. It’s built into every stage of the project, from the earliest design discussions through commissioning and final handover.

Think of compliance as a continuous process rather than a single milestone.

It Starts During Planning and Design

Every successful mission critical project begins with a clear understanding of the facility’s operational requirements.

How much redundancy is needed?
Will the facility require emergency generators?
Are there hazardous locations?
Will industrial automation systems need to communicate with building management systems or SCADA platforms?
The answers to these questions influence the electrical design, equipment selection, permitting requirements, and even the layout of the building.
Making these decisions early is far less expensive than redesigning systems after construction has already begun.

Engineering Turns Requirements Into Reliable Systems

Once the project moves into engineering, compliance becomes part of every design decision.

Electrical engineers develop power distribution systems that meet applicable codes. Controls engineers define how equipment will communicate, respond to failures, and recover during abnormal operating conditions. Mechanical, fire protection, and structural engineers all contribute systems that must work together safely and reliably.

At this stage, seemingly small decisions can have a significant impact later in the project. Choosing the wrong equipment, overlooking documentation requirements, or failing to coordinate between disciplines can create delays that are difficult and costly to correct.

Equipment Must Be Built for the Application

As equipment is specified and manufactured, compliance continues to shape the project. Industrial control panels, switchgear, generators, transfer switches, UPS systems, safety devices, and monitoring equipment must all be designed and constructed according to the standards that apply to the facility.

For example, a custom industrial control panel isn’t simply an enclosure filled with components. It must be properly engineered, documented, labeled, and assembled so it performs safely and reliably throughout its service life. Selecting experienced suppliers who understand these requirements helps reduce inspection issues and supports long-term system reliability.

Testing Begins Before Equipment Leaves the Factory

One of the most valuable opportunities to identify problems occurs before equipment is even installed.

During Factory Acceptance Testing (FAT), project teams verify that control panels, automation systems, and other equipment operate as intended. Communication between devices is tested, alarms are verified, and control sequences are reviewed while the equipment is still in a controlled factory environment.

Finding an issue during FAT is usually much faster and less expensive than discovering it after installation, when multiple contractors and project schedules are involved.

Installation Is Only Part of the Job

Even perfectly built equipment can experience problems if it isn’t installed correctly or integrated with the rest of the facility.

As construction progresses, electrical systems, automation controls, mechanical equipment, fire protection systems, networking infrastructure, and monitoring platforms must all be connected and coordinated. Each trade depends on the others, making communication and documentation essential throughout the installation process.

Commissioning Proves Everything Works Together

Construction may be complete, but the project isn’t finished until every critical system has been tested under real operating conditions.

Commissioning verifies that equipment performs as designed, while Integrated Systems Testing (IST) confirms that independent systems work together during both normal operation and emergency events.

For example, imagine a utility power failure. Within seconds, the UPS supplies critical loads, standby generators start automatically, transfer switches move the load, cooling systems continue operating, alarms are generated, and monitoring software records every event. If any part of that sequence fails, the entire facility can be at risk.

This is why commissioning is considered one of the most important phases of a mission critical project. It provides confidence that the facility will operate safely, reliably, and as intended before it supports real-world operations.

The Standards Support Every Stage

Now that we’ve followed the journey of a typical mission critical project, the various codes and standards begin to make much more sense.

There isn’t a single “mission critical code.” Instead, compliance is achieved by following a collection of nationally recognized standards that govern different parts of the project. Some focus on electrical safety, others on building construction, fire protection, emergency power, industrial control panels, worker safety, cybersecurity, or commissioning.

Understanding how these standards fit into the overall project helps owners, engineers, contractors, and manufacturers make better decisions from the very beginning—reducing risk, avoiding costly delays, and improving long-term reliability.

The following sections explain the most important codes, standards, and regulatory requirements that commonly apply to mission critical projects in Wisconsin.

Wisconsin’s Regulatory Environment

Mission critical projects in Wisconsin typically involve multiple regulatory authorities rather than a single approval process.

Depending on the project, owners may coordinate with:

• Wisconsin Department of Safety and Professional Services (DSPS)
• Local building departments
• Local fire departments
• Utility providers
• Wisconsin Department of Natural Resources (DNR)
• OSHA
• Local electrical inspectors
• Insurance representatives
• Third-party commissioning agencies

Each organization reviews different aspects of the project, making coordination essential from the earliest design stages.

One of the most common causes of construction delays is discovering late in the project that a permit, inspection, or approval was overlooked.

Beginning compliance planning during conceptual design is almost always less expensive than correcting deficiencies after equipment has been installed.

Wisconsin Department of Safety and Professional Services (DSPS)

The Wisconsin Department of Safety and Professional Services (DSPS) is the primary state agency responsible for administering Wisconsin’s commercial building codes and overseeing many aspects of construction compliance.

For many mission critical projects, DSPS requirements influence:

• Commercial building design
• Electrical installations
• Fire safety considerations
• Mechanical systems
• Plan reviews
• Inspections
• Occupancy approvals

The agency adopts and enforces numerous nationally recognized codes while incorporating Wisconsin-specific requirements where appropriate. Official resource:

https://dsps.wi.gov

The Most Important Codes and Standards for Mission Critical Projects in Wisconsin

One of the biggest misconceptions about mission critical construction is that there is a single “data center code” or “mission critical code.”

In reality, compliance comes from meeting dozens of interconnected standards. Each standard governs a different aspect of the facility, including electrical safety, fire protection, structural integrity, emergency power, commissioning, worker safety, and equipment construction.

Understanding which standards apply during each phase of a project helps prevent costly redesigns and inspection delays.

Below are the primary codes and standards that owners, engineers, contractors, and system integrators should be familiar with.

Wisconsin Commercial Building Code

Wisconsin adopts and enforces commercial building requirements through the Wisconsin Department of Safety and Professional Services (DSPS). These rules incorporate nationally recognized model codes with Wisconsin-specific amendments.

Commercial plan reviews may be required depending on the scope of the project.

Typical areas reviewed include:

• Structural systems
• Electrical infrastructure
• Mechanical systems
• Fire protection
• Means of egress
• Accessibility
• Occupancy classification
• Energy efficiency

Before construction begins, project teams should confirm which approvals are required from both the state and the local Authority Having Jurisdiction (AHJ). Official resource:
https://dsps.wi.gov

National Electrical Code (NFPA 70)

The National Electrical Code (NEC), published by the National Fire Protection Association (NFPA), is the foundation of electrical safety throughout the United States.

Nearly every mission critical electrical installation depends on NEC compliance.
The code governs:

• Electrical distribution
• Conductors
• Grounding and bonding
• Panelboards
• Switchgear
• Transfer switches
• Emergency systems
• Generator connections
• UPS installations
• Battery systems
• Electrical rooms
• Cable routing
• Overcurrent protection

Although the NEC establishes minimum safety requirements, many mission critical facilities exceed these minimums to improve reliability and maintainability.

Official resource:
https://www.nfpa.org/codes-and-standards

NFPA 70E – Electrical Safety in the Workplace

While NFPA 70 focuses on electrical installation, NFPA 70E addresses worker safety.

Mission critical facilities often contain high-energy electrical systems capable of producing dangerous arc flash events.

NFPA 70E helps organizations reduce these risks through:

• Arc flash studies
• Shock hazard analysis
• Safe work practices
• Lockout/tagout procedures
• Personal protective equipment (PPE)
• Employee training
• Equipment labeling

Most industrial owners require contractors working on energized equipment to follow NFPA 70E requirements.

NFPA 75 – Protection of Information Technology Equipment

NFPA 75 is particularly important for data centers.

It addresses the protection of information technology equipment and helps reduce fire risks within facilities housing critical computing infrastructure.

Topics include:

• Fire detection
• Fire suppression
• Cable management
• Equipment layout
• Housekeeping
• Emergency shutdown procedures
• Environmental controls

While not every Wisconsin project requires NFPA 75, it is widely referenced for data centers and other technology-intensive facilities.

NFPA 110 – Emergency and Standby Power Systems

Backup power is one of the defining characteristics of a mission critical facility.

NFPA 110 establishes requirements for:

• Emergency generators
• Fuel systems
• Generator testing
• Transfer switches
• Generator controls
• Maintenance intervals
• Reliability testing
• Documentation

Hospitals, emergency response centers, and many data centers rely heavily on these requirements.

International Building Code (IBC)

The International Building Code establishes minimum requirements for commercial construction.

For mission critical projects, it influences:

• Structural loading
• Fire resistance
• Occupancy classifications
• Equipment rooms
• Equipment anchoring
• Seismic considerations
• Roof loading
• Means of egress

Wisconsin adopts portions of the IBC through state regulations.

International Fire Code (IFC)

The International Fire Code works alongside the building code to reduce fire risks throughout the facility.

Mission critical facilities often require:

• Fire alarm systems
• Clean-agent fire suppression
• Smoke detection
• Emergency shutdown systems
• Fire-rated assemblies
• Equipment spacing
• Fire department access

Fire officials typically review these systems before occupancy.

OSHA Requirements

Even when a facility meets every building code, employers must still comply with OSHA regulations.

OSHA requirements affect nearly every contractor working on a mission critical construction site.

Examples include:

• Fall protection
• Confined spaces
• Lockout/tagout
• Electrical safety
• Crane operations
• Material handling
• Personal protective equipment
• Hazard communication
• Excavation safety

Compliance is required throughout construction, not just after the facility opens.

Official resource: https://www.osha.gov

UL 508A Industrial Control Panels

For industrial automation systems, UL 508A certification is one of the most important quality indicators.

A UL 508A panel shop follows nationally recognized construction standards for industrial control panels.

Benefits include:

• Improved electrical safety
• Easier inspections
• Consistent documentation
• Proper component selection
• Better short-circuit current ratings (SCCR)
• Increased confidence for owners and inspectors

Many industrial manufacturers, utilities, and mission critical facilities specify UL 508A panels as a project requirement.

UL 698A for Hazardous Locations

Some Wisconsin manufacturing facilities contain hazardous or classified areas where combustible dust, gases, or vapors may be present.

Examples include:

• Grain processing
• Chemical manufacturing
• Ethanol facilities
• Food processing
• Pharmaceutical manufacturing
• Paint operations

For these environments, UL 698A provides additional construction requirements for industrial control panels installed in hazardous locations.

Mission Critical Electrical Infrastructure Compliance

Electrical systems are the backbone of every mission critical facility. Unlike standard commercial buildings, mission critical electrical systems are engineered to remain operational even when equipment fails or maintenance is being performed.

Typical components include:

• Utility service entrances
• Medium-voltage distribution
• Switchgear
• Switchboards
• Transformers
• Automatic transfer switches
• UPS systems
• Battery energy storage
• Standby generators
• Generator paralleling switchgear
• Power distribution units (PDUs)
• Remote power panels (RPPs)
• Busway systems
• Branch circuits
• Grounding systems

Every component must be coordinated to ensure the system operates safely during both normal and emergency conditions.

Redundancy Requirements

Mission critical facilities commonly use redundancy to improve reliability. Examples include:Redundancy Requirements

• N
• N+1
• 2N
• 2N+1

These design strategies provide backup equipment that allows maintenance or failures without interrupting operations.

Although redundancy is not always mandated by code, it is often required by owners, insurers, or industry best practices.

Short Circuit Coordination

One frequently overlooked compliance area is selective coordination.
Proper coordination ensures that only the protective device nearest a fault trips during an electrical failure.

Without selective coordination:

• Larger portions of the facility may lose power.
• Critical systems can unexpectedly shut down.
• Downtime increases.
• Troubleshooting becomes more difficult.

Coordination studies should be completed during design and verified during commissioning.

Arc Flash Studies

Nearly every mission critical facility requires an arc flash study before occupancy.

The study identifies:

• Incident energy levels
• Shock hazards
• Required PPE
• Equipment labels
• Safe approach distances

Many insurers require updated studies whenever significant electrical modifications are made.

Grounding and Bonding

Proper grounding is essential for:

• Personnel safety
• Equipment protection
• Lightning protection
• Sensitive electronics
• Reliable operation of control systems
• Power quality

Poor grounding remains one of the leading causes of intermittent electrical problems in industrial and mission critical facilities.

Why Industrial Control Panels Play a Bigger Role Than Many Owners Realize

When people think about data centers or mission critical infrastructure, they often picture generators, servers, cooling systems, or switchgear.

Behind the scenes, however, industrial control panels coordinate many of the systems that keep the facility operating safely and efficiently.

These panels may control:

• HVAC systems
• Cooling equipment
• Chilled water systems
• Pump stations
• Fuel systems
• Generator sequencing
• Automatic transfer logic
• Fire pump controls
• Security systems
• Lighting controls
• Monitoring systems
• Building automation
• Process equipment

A well-designed control panel is more than an enclosure filled with components. It is the central point where electrical design, safety, automation, and operational reliability come together.

For mission critical facilities, properly engineered and UL-certified control panels help simplify inspections, improve maintainability, and reduce long-term operational risk.

Commissioning: Proving That Every System Works Together

For mission critical facilities, construction is only part of the project. Before a facility is placed into service, owners need confidence that every system performs as designed under both normal and emergency operating conditions.
This is the purpose of commissioning.

Commissioning is a structured process that verifies, documents, and tests building systems to ensure they meet the owner’s project requirements and design intent.

For a data center, hospital, manufacturing plant, or utility facility, commissioning reduces the risk of failures after occupancy and helps identify issues before they become expensive problems.

A thorough commissioning process typically includes:

• Reviewing design documents
• Verifying equipment installation
• Functional performance testing
• Integrated systems testing (IST)
• Documentation review
• Operator training
• Final acceptance testing

Rather than testing equipment individually, commissioning evaluates how systems interact with one another during real-world operating scenarios.

Integrated Systems Testing (IST

)

Mission critical facilities contain many interconnected systems that must work together seamlessly.

Integrated Systems Testing verifies that these systems respond correctly during simulated failures and emergency events.

Examples of IST scenarios include:

• Utility power failure
• Automatic generator startup
• Transfer switch operation
• UPS transition to battery power
• Cooling system redundancy
• Fire alarm activation
• Emergency shutdown sequences
• Building automation system responses
• Alarm notification and monitoring
• Generator load testing

For example, if utility power is lost, the following sequence should occur without interruption:

1. UPS systems immediately support critical loads.
2. Standby generators automatically start.
3. Automatic transfer switches transfer loads.
4. Cooling systems continue operating.
5. Monitoring systems record and report the event.
6. Critical IT equipment remains online.

Any failure during this sequence could result in unplanned downtime.

Documentation Is Part of Compliance

Many owners focus on equipment, but inspectors, commissioning agents, and facility operators also rely on complete documentation.

Typical documentation includes:

Electrical Drawings

• Electrical Drawings
• One-line diagrams
• Panel schedules
• Control schematics
• Wiring diagrams
• Equipment layouts
• Cable schedules

Equipment Documentation

• Manufacturer manuals
• Installation instructions
• Maintenance procedures
• Spare parts lists
• Warranty information

Testing Documentation

• Factory Acceptance Test (FAT) reports
• Site Acceptance Test (SAT) reports
• Generator testing
• Protective relay testing
• Arc flash study
• Coordination study
• Ground resistance testing
• Infrared inspections

Control System Documentation

Industrial automation systems should include:

• PLC backups
• HMI software
• Source code
• Network architecture
• IP address documentation
• Alarm lists
• Operator manuals

Without proper documentation, future troubleshooting becomes significantly more difficult and expensive.

Factory Acceptance Testing (FAT)

Whenever possible, critical equipment should be tested before shipment.

Factory Acceptance Testing verifies that equipment performs correctly before arriving on site.

• Typical FAT activities include:
• Control panel inspections
• PLC program verification
• HMI functionality
• I/O testing
• Communication testing
• Alarm testing
• Safety circuit verification
• Power-up testing
• Customer witness testing

Identifying issues in the factory is generally much less expensive than correcting them after installation.

At McIver Engineering & Controls, Factory Acceptance Testing is performed before equipment leaves our facility so customers can verify operation, review documentation, and identify issues before installation begins. Finding a problem in the shop is almost always faster and less expensive than correcting it after equipment reaches the job site.

Site Acceptance Testing (SAT)

After equipment is installed, Site Acceptance Testing confirms that systems operate correctly within the completed facility.

SAT often verifies:

• Equipment installation
• Electrical connections
• Network communications
• Instrument calibration
• Functional testing
• Safety devices
• Integration with existing systems

Successful FAT does not eliminate the need for SAT. Both play important roles in reducing project risk.

Wisconsin Permits and Inspections

Every mission critical project should establish a permitting strategy early in the design process.

Although requirements vary by municipality, projects commonly involve inspections related to:

• Commercial building permits
• Electrical permits
• Fire protection systems
• Mechanical systems
• Plumbing
• Structural work
• Elevators (where applicable)
• Fuel systems
• Emergency generators

Owners should coordinate closely with the local Authority Having Jurisdiction (AHJ) to understand inspection schedules and documentation requirements.

Waiting until construction is underway to clarify permitting responsibilities often leads to delays.

Environmental Compliance

Mission critical facilities may also require environmental approvals depending on the project scope.

Examples include:

Stormwater Management
Construction sites may require erosion control measures and stormwater permits.

Air Quality
Large emergency generators may require air permitting depending on their size, fuel type, and operating schedule.

Spill Prevention
Facilities storing diesel fuel for emergency generators should implement spill prevention and containment measures.

Noise Requirements
Generator installations may need to meet local noise ordinances through enclosure design, barriers, or operational restrictions.

Utility Coordination
Mission critical facilities require close coordination with electric utilities from the earliest planning stages.

Important considerations include:

• Service capacity
• Redundant utility feeds
• Substation availability
• Protective relay coordination
• Metering
• Interconnection requirements
• Construction scheduling

In Wisconsin, large data center projects often involve extensive planning with local utilities months or even years before energization.

Cybersecurity Is Becoming Part of Compliance

Modern mission critical facilities rely heavily on connected control systems.

Industrial automation, Building Management Systems (BMS), SCADA networks, and monitoring platforms all exchange operational data.

As connectivity increases, cybersecurity becomes an important part of overall project risk management.

Best practices include:

• Network segmentation
• User access control
• Multi-factor authentication
• Secure remote access
• Patch management
• Backup strategies
• Change management
• Cybersecurity documentation

Many owners now reference standards such as the NIST Cybersecurity Framework or ISA/IEC 62443 for industrial control systems.

Although not always required by code, these standards are increasingly included in owner specifications, especially for data centers, utilities, and critical manufacturing facilities.

Common Compliance Mistakes

Many compliance issues are avoidable with proper planning. The following mistakes frequently create delays, rework, or additional costs.

1. Waiting Too Long to Engage Specialists
Bringing electrical engineers, controls engineers, and commissioning professionals into the project late often results in redesigns and missed opportunities.

2. Assuming Code Compliance Equals Reliability
Meeting minimum code requirements does not necessarily provide the redundancy or resilience expected in mission critical facilities.

3. Incomplete Documentation
Missing drawings, outdated PLC programs, or undocumented field changes can slow inspections and complicate future maintenance.

4. Overlooking Control Panel Requirements
Custom control panels should be designed, built, and labeled according to applicable standards. Using a qualified UL 508A-certified panel shop helps simplify inspections and improves long-term reliability.

5. Skipping Factory Testing
Testing equipment only after it reaches the job site increases project risk and often extends startup schedules.

6. Poor Coordination Between Trades
Electrical, mechanical, controls, IT, fire protection, and commissioning teams must work from coordinated plans. Misalignment between disciplines can lead to conflicts during installation.

7. Neglecting Future Maintenance
Equipment layouts should provide adequate access for inspection, testing, repairs, and replacement. A design that is difficult to maintain can increase downtime over the facility’s lifespan.

How McIver Engineering & Controls Supports Compliant Mission Critical Projects

Mission critical facilities depend on more than high-quality equipment. They require experienced partners who understand how electrical systems, industrial automation, and compliance fit together throughout the project lifecycle.

At McIver Engineering & Controls, compliance is built into every stage of the process, from design support through manufacturing, testing, startup, and long-term service.

Our team supports owners, contractors, OEMs, EPC firms, and system integrators with:

• Custom UL 508A and UL 698A industrial control panels
• PLC and HMI programming
• Electrical control system design
• Automation integration
• Factory Acceptance Testing (FAT)
• Site Acceptance Testing (SAT)
• Startup and commissioning support
• Troubleshooting and modernization
• Retrofit and legacy system upgrades
• Documentation and technical support

With more than 45 years of experience, over 14,000 completed controls projects, a 95%+ on-time delivery rate, and a failure rate below 0.2% over the past five years, McIver helps customers reduce project risk while delivering reliable, production-ready control systems.

Whether supporting a new data center, expanding a manufacturing facility, or modernizing existing infrastructure, our focus is the same: delivering control systems that are safe, compliant, and built to perform in demanding environments.

Government & Industry Resources For the latest requirements, always check to the official source rather than relying solely on secondary guidance.

• Wisconsin Department of Safety and Professional Services (DSPS)
  Commercial building codes, plan reviews, inspections, licensing.

• Wisconsin Department of Natural Resources (DNR)
  Environmental permits, stormwater, fuel storage, air quality.

• Wisconsin Public Service Commission (PSC)
  Utility coordination and electrical infrastructure.

• Occupational Safety and Health Administration (OSHA)
  Workplace safety regulations.

• National Fire Protection Association (NFPA)
  NFPA 70, NFPA 70E, NFPA 75, NFPA 110 and other electrical and fire protection standards.

• International Code Council (ICC)
  International Building Code (IBC), International Fire Code (IFC), and related model codes.

• UL Solutions
  UL 508A, UL 698A, product certification information.

• National Institute of Standards and Technology (NIST)
  Cybersecurity Framework and guidance.

• International Society of Automation (ISA)
  ISA/IEC 62443 industrial cybersecurity standards.

• Uptime Institute
  Data center resiliency and Tier certification guidance.

• TIA (Telecommunications Industry Association)
  TIA-942 data center infrastructure standard.

Frequently Asked Questions

What is considered a mission critical project?
A mission critical project involves facilities where downtime is unacceptable because it could disrupt essential operations, public safety, or significant business functions. Examples include data centers, hospitals, utility infrastructure, pharmaceutical plants, and advanced manufacturing facilities.

Does Wisconsin have its own mission critical code?
No. Wisconsin follows a combination of state regulations and nationally recognized standards such as the National Electrical Code (NFPA 70), International Building Code (IBC), and OSHA requirements, with enforcement by state and local authorities.

Are UL 508A control panels required?
Not for every application, but many owners, engineers, and inspectors require UL 508A-certified industrial control panels because they demonstrate compliance with nationally recognized construction standards and simplify inspections.

What is the difference between FAT and SAT?
Factory Acceptance Testing (FAT) is completed before equipment leaves the manufacturer’s facility. Site Acceptance Testing (SAT) verifies that the equipment functions correctly after installation and integration into the project.

What Should Happen During Factory Acceptance Testing (FAT)?
Factory Acceptance Testing is one of the best opportunities to identify problems before equipment reaches the job site. Rather than waiting until installation is complete, FAT allows the project team to verify that the equipment performs as expected in a controlled manufacturing environment.
A thorough Factory Acceptance Test typically includes:

• Visual inspection of panel construction
• Verification of wiring and component installation
• PLC program testing
• HMI functionality testing
• Input and output (I/O) verification
• Alarm and fault testing
• Safety circuit verification
• Communication testing between connected devices
• Customer witness testing when required
• Review of project documentation

Discovering an issue during FAT is significantly less disruptive than finding it after equipment has been installed, when multiple contractors, schedules, and startup activities are already underway.

Why is commissioning important?
Commissioning confirms that electrical, mechanical, automation, fire protection, and control systems operate together as intended. It helps identify issues before occupancy, reducing downtime, improving reliability, and supporting long-term performance.

When should compliance planning begin?
As early as possible. Compliance decisions made during conceptual design are generally less expensive and easier to implement than changes made during construction or startup.

Final Thoughts

Mission critical facilities are expected to operate safely, reliably, and continuously. Achieving that level of performance requires more than quality equipment—it demands careful planning, adherence to applicable codes and standards, rigorous testing, and experienced project partners.

In Wisconsin, successful mission critical projects depend on understanding how state regulations, national standards, permitting requirements, commissioning, and industrial automation work together. Taking a proactive approach to compliance helps reduce project delays, improve safety, and protect long-term operational performance.

Whether you’re building a new data center, expanding a manufacturing facility, upgrading utility infrastructure, or modernizing critical systems, investing in compliance from the beginning is one of the most effective ways to reduce risk and deliver a dependable, high-performing facility.

When control systems, industrial automation, or custom UL-certified control panels are part of your project, partnering with an experienced Wisconsin-based integrator can help simplify the path from design through commissioning while supporting safe, code-compliant operation.

LEAD MAGNET: downloadable checklist PDF

Standards comparison table:

Standard	Covers	Applies To
NFPA 70	Electrical installation	All commercial buildings
NFPA 70E	Electrical worker safety	Maintenance personnel
NFPA 75	IT equipment protection	Data centers
NFPA 110	Emergency generators	Mission critical facilities
IBC	Building construction	Commercial buildings
IFC	Fire code	Commercial facilities
UL 508A	Industrial control panels	Automation systems
UL 698A	Hazardous location panels	Chemical & dust environments
IEEE 3007	Power system reliability	Mission critical electrical systems
NIST Cybersecurity Framework	Cybersecurity	Critical infrastructure
ISA/IEC 62443	Industrial cybersecurity	ICS/SCADA
TIA-942	Data center design	Data centers
OSHA	Worker safety	Construction & operations