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ISA/IEC 62443 IACS Security Assurance (ACSSA) Program
Help launch this first-of-its-kind program to demonstrate operating site compliance with the international standard ISA/IEC 62443
The International Society of Automation (ISA), along with the ISA Security Compliance Institute (ISCI), will rollout its new conformity assessment scheme for automation systems deployed at operating sites in first quarter 2026.
The Pilot Training program will be in January 2026 for ISASecure members, with additional training added for non-members in early 2026.
It's a critical and long overdue addition to the landscape of operational technology (OT) cybersecurity solutions.
Already an ISASecure member and want to sign-up for ACSSA Training, please email mritterskamp@isa.org
Want to be an early adopter of ACSSA but aren't a member?
Fill out the form below.
Read the most recent ACSSA White Paper
Download now.
A quick video from Steve Mustard on how ACSSA will benefit automation.
View the Latest Webinar Updates on Program Development
ACSSA Implementation Update
A new update on ISASecure Automation & Control System Security Assurance (ACSSA) assessment and certification scheme.
View the WebinarACSSA Industry Panel Update
Hear from program managers, directors, and SMEs actually writing the standard to hear firsthand about what's to come.
View the WebinarWhy OT Cybersecurity Can’t Be Solved with IT Tools: A Site-Level Perspective
Alan Raveling of Interstates examines the impact of applying IT tools in OT environments and shares strategies for integrating OT techniques into IT-managed systems using real-world examples.
View the WebinarBased on the World’s Leading OT Cybersecurity Standard
Based on the world’s only consensus-based automation and control systems cybersecurity standards — ISA/IEC 62443 — the OT cybersecurity site assessment scheme will apply to all types of automation and control systems in industries ranging from traditional process industries to critical infrastructure such as oil and gas, chemicals, electrical power plants and water/wastewater.
The Challenge: Operating Sites are Vulnerable
Suppliers have broadly adopted the leading international standard for OT cybersecurity, ISA/IEC 62443, as well as its certification scheme, ISASecure, for commercial off-the-shelf (COTS) automation and control system products and suppliers’ security development practices. However, asset owners and plant managers have yet to coalesce around a single cybersecurity assessment scheme for OT deployed at operating sites, relying instead upon a patchwork of third-party solutions that may not promote industrial control system (ICS) security best practices, leaving operating sites vulnerable.
Unique Solution for Operating Site Assessment
The proposed ISASecure site assessment scheme fills a very important gap in the OT cybersecurity landscape – the operating site itself. There is no other standards-based program like this available today, and we anticipate it will become the global standard used by operating sites, certification bodies, internal auditors, and public policymakers.
The program will encourage the broad industry adoption of the ISA/IEC 62443 operating site cybersecurity standards and best practices by companies. ISA and ISCI plans include building and overseeing a related training and credentialing program for site assessors. ISA and other training organizations already offer training for the ISA/IEC 62443 operating site standards.
Find out more about becoming an ISASecure member
Companies who are interested in supporting and promoting this program are invited to participate by becoming an ISASecure member.
ACSSA will be rolling out in early 2026.
Take a moment to fill out the form below, now!
