NIST SP 800-82

NIST SP 800-82 is a special publication from the U.S. National Institute of Standards and Technology (NIST) that provides guidance on the security of Industrial Control Systems (ICS). It focuses on how to protect operational technology (OT) environments such as manufacturing control systems, distributed control systems (DCS), and supervisory control and data acquisition (SCADA) systems.

The document describes typical ICS architectures, identifies common vulnerabilities and threat scenarios, and outlines recommended practices for securing control systems throughout their lifecycle. It covers topics such as network segmentation, access control, monitoring, incident response, and system hardening for environments that manage physical processes.

Use in industrial and regulated environments

In manufacturing and other regulated industries, NIST SP 800-82 is commonly used as a reference for:

• Designing and reviewing OT network architectures for production lines, utilities, and facility systems
• Aligning security controls for PLCs, HMIs, historians, MES interfaces, and gateways connecting OT and IT networks
• Supporting risk assessments and cybersecurity programs for plants, laboratories, and other process facilities
• Coordinating with IT security frameworks, such as controls cataloged in NIST SP 800-53, for environments that combine ICS, MES, and ERP systems

The guidance is descriptive and advisory. It does not by itself establish legal compliance or guarantee audit outcomes. Organizations typically adapt its recommendations to their specific processes, equipment, and regulatory obligations.

What NIST SP 800-82 includes and excludes

NIST SP 800-82 primarily includes:

• Security considerations for ICS components such as controllers, sensors, actuators, engineering workstations, and control networks
• Recommended security controls and practices tailored for safety- and reliability-critical OT environments
• Guidance on integrating ICS into broader enterprise security programs

It does not:

• Serve as a detailed equipment manual or vendor-specific configuration guide
• Provide certification or formal compliance status for an organization or system
• Replace sector-specific regulations or standards that may impose additional requirements

Common confusion

NIST SP 800-82 is sometimes confused with:

• NIST SP 800-53, which provides a broad catalog of security and privacy controls for federal information systems and organizations. SP 800-82 focuses specifically on ICS and OT environments and may reference or adapt controls from SP 800-53.
• Sector-specific standards for industrial cybersecurity, such as ISA/IEC 62443. NIST SP 800-82 is a NIST guidance document and is not the same as these standards, although it addresses many of the same technical and operational security topics.

Relationship to security controls

NIST SP 800-82 commonly refers to security controls and practices that can be selected and tailored for ICS and OT. Organizations often use it together with generic control catalogs, such as those in NIST SP 800-53, to decide which technical, administrative, and physical safeguards to apply in their industrial environments.