ISO 21423:2026, a new international standard for communications among industrial mobile robots, was published by the Association for Advancing Automation (A3), and it applies regardless of vendor or model. The ISO 21423 standard gives automated guided vehicles, autonomous mobile robots and similar systems a shared set of requirements for working in the same facility.
What the standard covers
The full title is ISO 21423 Robotics – Industrial mobile robots – Communications and interoperability. It was developed by ISO Technical Committee 299. Its scope is industrial mobile robots, or IMRs, a category that includes AGVs and AMRs from different suppliers.
The standard specifies how IMRs, fleet managers and other equipment exchange information and request actions. Under it, robots can share their location, speed, direction, condition, tasking and availability with one another, A3 said.
Its reach goes beyond robot-to-robot messaging. The document also covers communication with machines tended by robots, with enterprise resource planning (ERP) tools, and with industrial building systems such as lifts, automated doors and alarms. People who use or wear mobile devices can share similar information, so their work can be coordinated alongside the robots.
Why A3 says users asked for it
Carole Franklin, director of standards development for robotics at A3, said companies want to pick the robots that fit their applications and have them work together on the same floor. She said many leading industrial users of mobile robots have asked for an interoperability standard for years.
Franklin said ISO 21423 gives manufacturers and users a common basis for communication across fleets, no matter where in the world a facility is located. She added that it can help companies expand automation with equipment from different vendors and make better use of the robots they already have.
A3 listed several expected benefits for end users. The main one is fewer cases of robots interfering with each other's paths or path planning, which A3 said improves robot availability and system efficiency. A3 also said a common protocol could increase competition in the market and support innovation. Because it is an ISO standard, it can be adopted in countries around the world.
Availability and A3's role
The standard is sold through the A3 online store for $373. A3 members can buy it for $320.
A3 describes ISO 21423 as the first non-safety robot standard it has helped produce. The organization is based in Ann Arbor, Mich. Its members include more than 1,500 manufacturers, component suppliers, systems integrators, end users, academic institutions, research groups and consulting firms. A3 also hosts the International Robot Safety Conference, the A3 Business Forum and Automate.
Analysis: what this changes and what is unproven
The significance of ISO 21423 lies partly in who is asking for it. The demand described comes from industrial users who want to run robots from more than one supplier on one floor. When a facility's fleet is tied to a single vendor, the buyer's choices narrow at each expansion. A shared communication layer shifts some of that leverage to the buyer. A3's own claim that a common protocol could increase competition follows from this, though it remains a claim about the future and not a measured result.
The standard's scope is also wider than many fleet-coordination efforts would suggest. It addresses lifts, automated doors, alarms, ERP tools and people with mobile devices, in addition to other robots. In a real facility, a mobile robot spends much of its time interacting with infrastructure, not with other robots. Covering those links in one document suggests the committee treated interoperability as a site-level problem. Whether the document specifies each of those interfaces in enough detail to be implemented without vendor-specific work cannot be judged from what A3 has said publicly.
The format matters as well. An ISO designation means the text can be adopted in many countries, which supports Franklin's point about facilities anywhere in the world. A standard that a multinational manufacturer can apply at every site is easier to justify in procurement than a regional or vendor-led specification. A3 did not name other interoperability specifications for mobile robots or say how ISO 21423 relates to them, so any comparison would go beyond the available facts. Buyers with fleets already running on existing protocols will want that question answered.
Several points remain unproven. A3 has not said which vendors plan to support the standard or when products will conform to it. It has not said how conformance will be tested or certified. The reported gains in fewer path conflicts, better availability and higher efficiency are stated as expected outcomes, and no deployment data accompanies them. The $373 price, or $320 for members, is a modest barrier for large manufacturers but is worth noting for smaller integrators who must read the document before building to it.
The practical test will come after publication. If vendors implement the standard and mixed fleets run together with fewer path conflicts, the claims will have support. Until then, ISO 21423 is a published set of requirements, and its value depends on adoption.
