The International Organization for Standardization published ISO 21423:2026 on November 2, 2026, a new standard that lets industrial mobile robots from different manufacturers share location, speed, task and availability data on the same facility floor. The Association for Advancing Automation (A3), which chairs the working group behind the standard, is selling it for $373, or $320 for A3 members.
The standard was developed by Working Group 10 of ISO Technical Committee 299, the body responsible for robotics standards, with input from end users including General Motors and Procter & Gamble, robot orchestration platform InOrbit.AI, Germany's VDMA engineering association, MassRobotics, and the creators of the VDA 5050 communication framework. It runs on MQTT and JSON, two widely used lightweight messaging protocols, rather than a proprietary format tied to one vendor.
The problem it solves
Most warehouses and factories today run mobile robots from a single vendor, largely because mixing fleets has been a communication headache. One company's automated guided vehicle has no standard way to tell another company's robot where it is, where it's heading, or whether their paths are about to cross. That has forced operators to either commit to one supplier for years or build custom, expensive integration layers between systems never designed to talk to each other.
ISO 21423 addresses that by defining a shared vocabulary for robot-to-robot communication, as well as communication with fleet managers, enterprise resource planning systems and building infrastructure such as elevators, automated doors and alarms. Carole Franklin, A3's director of standards development for robotics, said the goal is straightforward: "Companies want to choose the robots that fit their applications and have those robots work together on the same floor."
Why multi-vendor fleets matter now
The timing lines up with a broader shift in the mobile robot market. North American companies ordered 10,989 robots worth $723.5 million in the third quarter of 2026 alone, a 24.8% jump in units from a year earlier, as semiconductor, automotive and life sciences companies all expand automation at once. As facilities scale up faster than any single robot vendor can supply hardware, operators increasingly want the freedom to add a second or third supplier's machines without re-architecting their entire facility's software stack.
The standard's release also coincides with A3's International Robot Safety Conference, running November 3-5 in Detroit, where sessions are expected to cover how the newly updated global robot safety standard interacts with mobile and collaborative robot deployments. That overlap is not incidental: as fleets mix vendors, safety certification and interoperability increasingly have to be solved together rather than separately.
A standard alone does not force compliance, and adoption will depend on whether major robot makers build ISO 21423 support into their fleet management software rather than treating it as optional. With end users like GM and P&G already involved in drafting it, pressure on suppliers to support it is likely to come from customers' purchasing departments as much as from the standard itself. The next test is implementation: how many vendors publish compliant interfaces over the coming year, and whether early multi-vendor deployments expose gaps the standard didn't anticipate.