On June 18, 2016, 20-year-old Regina Elsea entered a robotic station at the Ajin USA plant in Cusseta, Alabama, to clear a sensor fault. The robot restarted and crushed her, two weeks before her wedding, and OSHA proposed $2.5 million in penalties against the parts supplier and its staffing agencies.
A robot risk assessment exists to stop exactly that sequence: the task, the fault, the re-entry, the restart. Investigators found Ajin had lockout procedures on paper but never enforced them, and in March 2023 an administrative law judge affirmed $1.3 million in penalties.
| Robot Risk Assessment: Key Takeaways |
| ISO 10218-1 and 10218-2:2025, published February 2025, absorbed ISO/TS 15066 and added cybersecurity requirements; collaborative now describes the application, and no robot is collaborative by itself. |
| ANSI/A3 R15.06-2025, released September 9, 2025, is the US national adoption of ISO 10218 and adds a US-developed Part 3 written for the companies that operate robots. |
| A 2024 Applied Ergonomics study counted 77 robot accidents in OSHA severe injury reports from 2015 to 2022; stationary robots drove amputations, mobile robots drove leg and foot fractures. |
| NIOSH identified 41 robot-related worker deaths between 1992 and 2017, and 78% involved the robot striking the worker, most often during maintenance or fault recovery. |
| The 2016 Ajin USA fatality drew $2.5 million in proposed OSHA penalties and shows why a task-based assessment must cover fault clearing, never just normal production. |
| With 4,664,000 industrial robots in service per IFR World Robotics 2025, run the six-step ISO 12100 loop per task and per operating mode, and reassess on every change. |
The stakes keep growing fast. The International Federation of Robotics counts 4,664,000 industrial robots working worldwide in 2024, up 9% in a single year. Every one of them needs an assessment that reflects the safety standards ISO and A3 rewrote across 2025.
What a Robot Risk Assessment Covers in 2026
A robot risk assessment identifies every hazard a robot system can create, estimates how badly and how often each could hurt someone, and drives the risks down to an acceptable level. The method comes from ISO 12100, the machinery safety standard both ISO and US robot rules point back to.
The discipline sits inside the broader practice of how to conduct a risk assessment and everyday safety risk management, but robots add wrinkles that generic checklists miss. A robot’s hazard zone moves, its program changes after commissioning, and its failure modes include software faults no floor walkthrough will surface.
Scale explains the urgency. Installations topped 500,000 units for the fourth straight year in 2024, and the IFR expects 575,000 new robots in 2025, with Asia absorbing 74% of deployments. Each installation is a new cell, a new task list, and a new robot risk assessment obligation.
Robot Risk Assessment Demand Tracks the Install Base
Figure 1. Asia absorbed 74% of the 542,000 industrial robots installed in 2024. Source: IFR World Robotics 2025.
The 2025-2026 Standards Behind a Robot Risk Assessment
Those install numbers landed in the middle of the deepest standards rewrite since 2011. ISO published ISO 10218-1:2025 and ISO 10218-2:2025 in February 2025, folding the collaborative force limits of ISO/TS 15066 into the core text and adding cybersecurity requirements for the first time.
The American adoption followed on September 9, 2025, when the Association for Advancing Automation released ANSI/A3 R15.06-2025 across three parts and 403 pages. Parts 1 and 2 mirror the ISO text, and the new Part 3 carries US-developed requirements for the companies that operate robots.
One vocabulary change matters for every robot risk assessment written from here on. The 2025 texts retire the term collaborative robot, and A3’s guidance on the update explains why: only a complete application, with its tooling, workpiece, and layout, can be verified as collaborative.
| Standard | What it covers | Status in 2026 |
| ISO 10218-1:2025 | The robot as a manufactured product, functional safety, cybersecurity | Published February 2025, replaces the 2011 edition |
| ISO 10218-2:2025 | Cell integration, task-based robot risk assessment, collaborative applications | Published February 2025, absorbs ISO/TS 15066 |
| ANSI/A3 R15.06-2025 | US national adoption of ISO 10218 plus a user-facing Part 3 | Released September 9, 2025, replaces R15.06-2012 |
| ANSI/RIA R15.08-1-2020 | Design requirements for industrial mobile robots | Current; Part 3 remains in development |
| ANSI/A3 R15.08-2-2023 | Mobile robot systems, fleets, and site integration | Current |
| ISO 12100:2010 | The master risk assessment method for all machinery | Current, referenced by every standard above |
OSHA has no robot-specific standard and cites robot injuries under machine guarding, lockout, and the General Duty Clause instead. The agency’s technical manual chapter on industrial robot safety and its robotics hazard-evaluation guidance both point employers toward R15.06, which makes the voluntary standard a de facto compliance baseline.
The Robot Risk Assessment Rulebook on One Timeline
Figure 2. The 2025 revisions replaced a rulebook that had stood since 2011. Sources: ISO, A3.
Robot Risk Assessment by Robot Type
Standards in hand, the next question is what kind of robot you are assessing. A welding arm, a warehouse AMR, and a hand-guided application carry different hazard profiles and different governing documents, even though the ISO 12100 loop underneath them stays the same.
| Robot category | Governing standards | Where the robot risk assessment focuses |
| Fixed industrial arms | ISO 10218:2025; ANSI/A3 R15.06-2025 | Guarding, lockout during fault recovery, restricted space, end-effector hazards |
| Industrial mobile robots (AGVs and AMRs) | ANSI/RIA R15.08 Parts 1 and 2 | Pedestrian routes, blind corners, load stability, floor and ramp conditions |
| Collaborative applications | ISO 10218-2:2025 collaborative clauses (former TS 15066) | Contact force and pressure limits, speed and separation monitoring, hand-guiding controls |
| Autonomous and AI-driven systems | ISO 10218:2025 plus AI risk frameworks | Sensor failure, decision faults, cybersecurity, unforeseen interactions with people |
Mobile robots deserve particular care because the hazard zone travels with the machine. ANSI/RIA R15.08-1-2020 sets design requirements and ANSI/A3 R15.08-2-2023 covers site integration, and both push the owner to assess routes, blind intersections, ramps, and pedestrian traffic as part of operational risk management.
Collaborative applications flip the guarding question. Instead of fencing people out, the robot risk assessment must prove that any contact stays within the pain-onset force and pressure thresholds the standard tabulates by body region, verified with instrumented force measurements at each contact point.
Machinery the robot feeds or unloads belongs inside one assessment scope. A cell serving a press inherits the press’s hazards, which is why our injection molding risk assessment pairs naturally with this guide on integrated lines where the robot is only one hazard source.
The Hazards a Robot Risk Assessment Must Catch
Robot type sets the emphasis, and the injury record shows what actually goes wrong. A 2024 study in Applied Ergonomics analyzed 77 robot accidents reported to OSHA between 2015 and 2022, and stationary robots caused 54 of them, mostly finger amputations plus head and torso fractures. Mobile machines caused the remaining 23, and they mostly broke ankles, legs, and feet.
Injury Patterns Every Robot Risk Assessment Should Expect
Figure 3. Stationary robots drove 54 of 77 OSHA-reported robot accidents from 2015 to 2022. Source: Applied Ergonomics, 2024.
The same study distilled seven incident archetypes, including unexpected activation, faulty commands, sensor and communication errors, and intrusion by a second robot into a shared zone. Fold those archetypes into your hazard identification and analysis work and your risk identification toolkit before scoring anything.
Fatality records stretch the pattern across a longer window. NIOSH’s Center for Occupational Robotics Research and its partners identified 41 robot-related deaths in federal census data between 1992 and 2017, and 78% involved the robot striking the worker, frequently during maintenance or troubleshooting.
Most of those deaths happened around stationary machines that were nominally stopped, a pattern NIOSH’s workplace robotics overview flags for maintenance tasks. Keep the difference between a hazard and a risk explicit in the register, and anchor the vocabulary with our definition of hazard and risk assessment guide so those exposures stay visible.
The Fatality Data Behind Robot Risk Assessment Priorities
Figure 4. Struck-by events dominate the 41 US robot-related deaths NIOSH identified. Source: NIOSH CFOI analysis.
| Hazard class | Typical trigger | Documented consequence |
| Unexpected activation | Fault clearing without lockout | Crushing; the 2016 Ajin USA fatality |
| Mechanical contact | Entering restricted space during operation | Amputations and fractures per OSHA severe injury data |
| Mobile robot collision | Blind intersections, unmarked routes | Leg and foot fractures |
| Ergonomic strain | High-frequency loading and unloading stations | Musculoskeletal disorders |
| Cybersecurity compromise | Exposed controller network access | Manipulated motion, disabled safeguards |
| Environment and materials | Hazardous payloads, hot work, charging stations | Burns and exposure incidents |
Cybersecurity is on the hazard list because ISO 10218:2025 put it there. A networked controller an attacker can reach is a safety hazard, so pull cybersecurity risk management and a NIST risk assessment view into the cell file, with CISA’s industrial control systems guidance as the operational reference.
How to Run a Robot Risk Assessment Step by Step
With the hazards mapped, the assessment itself runs a six-step loop grounded in ISO 12100 and required at cell level by ISO 10218-2:2025. The defining feature is that it is task-based: fault recovery, cleaning, and changeover get assessed alongside production, because that is where workers get hurt.
| Step | What you do | Evidence it leaves behind |
| 1. Set the limits | Define spaces, tasks, lifecycle stages, operating modes, and every category of user | Scope statement with cell drawings and task inventory |
| 2. Identify task-hazard pairs | Walk each task through each mode, including fault recovery and maintenance | Task-hazard register |
| 3. Estimate the risk | Score severity, exposure frequency, and the chance of avoiding harm | Scored register entries |
| 4. Evaluate | Compare scores against acceptance criteria and the standard’s requirements | Risk evaluation record with accept or reduce decisions |
| 5. Reduce | Design hazards out first, safeguard second, inform and train last | Updated drawings, safety functions, procedures |
| 6. Verify and document | Test safety functions, measure contact forces, sign off residual risk | Validation report and residual risk file |
Steps three and four are where qualitative and quantitative risk assessment methods both show up: teams score severity, exposure, and avoidability qualitatively, then verify the resulting safety functions quantitatively against assigned performance levels. Our step-by-step guide to risk assessment and risk assessment methodology guide walk the generic loop.
Risk reduction follows a fixed order. Design the hazard out first, add safeguarding and protective devices second, and lean on training, signage, and PPE only for the remainder. Inverting that order is among the most common findings when OSHA reconstructs how a robot hurt somebody.
Treat the robot risk assessment as living documentation; our risk assessment templates give the register a durable structure. Reassess whenever the end-effector, program, payload, or layout changes; our guidance on how often risk assessments should be conducted and on scenario-based risk assessment covers the cadence and the stress tests.
Robot Risk Assessment FAQs: Expert Answers to Critical Questions
What standards govern a robot risk assessment in 2026?
Four documents do the heavy lifting: ISO 10218-1:2025 and ISO 10218-2:2025 internationally, ANSI/A3 R15.06-2025 in the United States, and the ANSI/RIA R15.08 series for industrial mobile robots. All of them route the robot risk assessment method itself back to ISO 12100, the machinery standard.
Does a collaborative robot still need a robot risk assessment?
Yes, and the 2025 standards make the point by retiring the phrase collaborative robot altogether. Only an application can be collaborative, so the robot risk assessment must verify force limits, separation monitoring, and speed for the actual task, tooling, and workpiece in front of it.
How often should a robot risk assessment be reviewed?
Reassess on every material change: a new end-effector, new program, new payload, a relocated cell, or a near miss. Between changes, an annual review is a defensible floor for high-consequence cells, and many US integrators align the robot risk assessment cycle with their R15.06 validation checks.
Who owns the robot risk assessment for an integrated cell?
The integrator typically produces the initial cell-level file under ISO 10218-2:2025, and the user owns it once production starts. R15.06-2025 Part 3 exists because user companies inherit a robot risk assessment they did not write and must keep it current through the cell’s life.
What makes a robot risk assessment task-based?
It scores hazards separately for each task and each operating mode. Programming, fault recovery, cleaning, and changeover all get their own line items in the robot risk assessment, because the injury record shows interventions on a stopped cell hurt more workers than steady production does.
How does cybersecurity fit into a robot risk assessment?
ISO 10218:2025 added cybersecurity because a compromised controller can defeat every physical safeguard in the cell. Assess network exposure, access control, and update paths inside the robot risk assessment, using the ISA/IEC 62443 series as the reference control set for industrial automation.
Robot Risk Assessment Pitfalls That Keep Filling OSHA Case Files
The robot risk assessments that failed were finished documents that looked fine in the binder. The citation record reads like our operational risks examples catalog come to life, and the recurring mistakes below each carry a straightforward correction that costs far less than the OSHA penalty it prevents.
| Pitfall | Root cause | Remedy |
| Assessing only normal production | Task list stops at steady state | Score fault recovery, cleaning, and changeover explicitly |
| Lockout that exists on paper only | No enforcement or supervision | Audit lockout compliance; the Ajin case shows the cost |
| Treating a cobot as safe out of the box | Marketing conflated robot and application | Measure forces and pressures in the installed application |
| Ignoring mobile robot routes | Assessment scoped to the robot alone | Map traffic, intersections, and floor changes per R15.08-2 |
| Static documents | No trigger list for reassessment | Tie the robot risk assessment to change control |
| Skipping cybersecurity | Safety and IT teams working in silos | Add controller network exposure to the hazard register |
Where Robot Risk Assessment Heads Through 2028
Expect the install base to keep compounding. The IFR projects annual installations to pass 700,000 units by 2028, and each new cohort is more autonomous and more mobile, with more of its safety chain living in software, which widens the assessment scope every year.
January 20, 2027 is the date US exporters should circle: the EU Machinery Regulation 2023/1230 starts applying, and robot cells shipped into Europe will need files that address software updates and self-evolving behavior. Domestic plants get a preview of language OSHA guidance tends to adopt later.
Keep the hazard register open as the humanoid and general-purpose robot wave arrives. Standards for legged machines are still in drafting committees, and until they publish, an AI risk management overlay on the ISO 12100 loop is the practical bridge for assessing learning-driven behavior.
Give manufacturing dashboards a robotics row as fleets grow. Near-miss counts inside cells, safeguard bypass events, and overdue reassessments all hand plant leadership early warning, and our manufacturing key risk indicators examples show how to wire that telemetry into the register.
Bring Your Robot Risk Assessment to Risk Publishing
If your cells were last assessed under the 2012-era rules, the 2025 standards moved the target on you. Risk Publishing helps US manufacturers rebuild robot risk assessment files against ISO 10218:2025 and R15.06-2025; see what our services cover, then contact us to put a date on the first cell review.
Chris Ekai is a Risk Management expert with over 10 years of experience in the field. He has a Master’s(MSc) degree in Risk Management from University of Portsmouth and is a CPA and Finance professional. He currently works as a Content Manager at Risk Publishing, writing about Enterprise Risk Management, Business Continuity Management and Project Management.