You cannot tell whether a humanoid robot is safe to work beside from its shape, a “collaborative” label, or a general vendor claim. Evaluate the complete application: the robot, task, tools, payload, work area, operating modes, safeguards, and people who may be exposed. Before use, document the hazards and risk-reduction measures, verify the safeguards in the installed setup, and reassess when the system or work changes.
What should the safety evaluation cover?
Assess the robot as part of the work process, not as a product in isolation. The same robot can present different risks when its task, attachment, payload, speed, surroundings, or operating mode changes. Use the manufacturer’s instructions to establish the risk zone for the specific machine, attachment, and task; do not assume the visible work area is the robot’s full reach.
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Record the configuration and conditions that define the application:
- Robot make, configuration, software, and intended operating modes.
- Tools, end effectors, payloads, workpieces, and nearby process equipment.
- Task sequence, speeds, layout, access points, and fixed structures that could trap someone.
- Operators, maintenance staff, and other people who could approach or enter the area.
- Foreseeable non-routine work, including teaching, setup, testing, fault recovery, cleaning, maintenance, and restart.
Include affected workers in the assessment. OSHA’s Technical Manual calls for a comprehensive, application-specific hazard analysis and risk assessment before commissioning, recommends employer and worker participation, and calls for verification that planned measures have been implemented.
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Which hazards and exposure paths should you look for?
Trace how a person could be exposed during each task phase, including when the robot is stopped, being set up, or recovering from a fault. Consider hazards from the robot and from the tool, workpiece, and process.
- Contact and entrapment: impact, crushing, trapping, or pinning, especially between the robot and a wall, fixture, or other fixed structure.
- Unexpected movement: motion during operation, testing, adjustment, fault recovery, or restart.
- Tool and work hazards: contact with sharp or hot tooling, or injury from objects that are dropped or ejected.
- Reach and access: whether the robot can reach beyond its apparent task area and who can enter or approach its risk zone.
- Configuration changes: how a different attachment, payload, task, or setting changes hazards and exposure.
Do not limit the assessment to ordinary production. OSHA notes that many robot accidents occur during programming, maintenance, testing, setup, or adjustment, when a worker may enter the working envelope. Procedures and safeguards need to account for these activities, not just normal operation.
How do you choose safeguards for a shared workspace?
First decide whether people need to share the space with the robot or be present while it moves. If they do, choose protective measures based on the hazards and exposure paths identified in the assessment. OSHA discusses several collaborative approaches, but they are not interchangeable and none makes every application safe by itself.
| Approach | What to establish for the application |
|---|---|
| Speed and separation monitoring | Assess its suitability for the identified hazards, robot speed and payload, and the required separation from people. |
| Safety-rated monitored stop | Provide continued detection of workers in the safeguarded space and define the response if detection is lost or a fault occurs. |
| Hand-guided operation | Assess it for the specific task and operating conditions; the approach’s name alone does not establish that the application is safe. |
| Power-and-force limiting | Assess contact forces and pressures for the particular application as part of the risk assessment. |
Compare proposed safeguards by the hazards they cover, their detection or stopping function, safe distance and response time, behavior on a fault or loss of detection, suitability for the robot’s speed and payload, effect on access and workflow, and the evidence available for integration and validation. Also account for maintenance needs.
A presence sensor, soft covering, force limit, or emergency-stop button is not, on its own, proof that an application is safe. For example, monitored stop depends on continued detection of workers in the safeguarded space; the device and its installation must suit the system and be part of a verified protective arrangement.
What must be verified before the robot is used?
Require documented evidence that safeguards work in the final installed setup, not only in a proposal or a different configuration. OSHA says the employer should ensure the integrator has designed and implemented a safe application and that achievement is verified, commonly at site acceptance.
- Confirm the assessment covers the actual layout, tools, payloads, tasks, and operating settings.
- Verify that protective measures perform their intended function in the installed application.
- Define what happens when detection fails, a fault occurs, or the robot stops, and how restart is controlled.
- Document the acceptance and verification results so the employer can confirm the safeguards were implemented.
How should training, maintenance, and changes be handled?
Train operators and maintenance workers on the application-specific procedures and relevant standards. Set clear rules for access, setup, programming, testing, maintenance, fault recovery, and restarting after a stop or fault. Make sure workers know when entry into the robot’s working envelope is possible and what procedure applies to that task.
Reassess the application after meaningful changes to software, tools, payloads, task, speed, layout, access, or work practice. A change can alter either the hazard or who is exposed, so the original assessment may no longer describe the installation.
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Which standards and legal duties apply?
OSHA states, “There are currently no specific OSHA standards for the robotics industry.” That does not mean employers have no workplace safety duties. Applicable requirements depend on the machine, task, and jurisdiction. OSHA also distinguishes national consensus standards from its regulations: its standards page says, “These are NOT OSHA regulations.” Employers should use relevant regulations and standards for the actual installation and seek jurisdiction-specific advice where classification or adoption is uncertain.
| Standard or reference | Scope or relevance stated in the sources |
|---|---|
| ANSI/ISO 12100 | Machinery design and risk assessment. |
| ANSI/RIA R15.06 and ISO 10218 | Industrial robots and system integration. |
| ISO/TS 15066 | Collaborative robot applications. |
| ISO 10218-1:2025, edition 3, published 2025-02 | Part 1 addresses the industrial robot as partly completed machinery; ISO 10218-2 addresses integration into a complete system. |
Scope matters for a humanoid robot. OSHA cautions that ISO 10218 applies to industrial robots, not non-industrial robots, although its principles may be useful for other robots. Whether a particular humanoid falls within an industrial-robot standard’s scope depends on its intended use, design, jurisdiction, and applicable adoption. Confirm the relevant edition and national adoption for the project; the 2025 publication date above is distinct from earlier ISO 10218 editions cited in OSHA technical material.
What the available evidence does not establish
The official sources discussed here address industrial and collaborative robotics broadly; they do not establish a universal humanoid-specific certification, safety threshold, or acceptance checklist. They also do not establish a humanoid-specific workplace injury rate or safety-effectiveness percentage. Resolve the classification and applicable requirements for the actual installation with the responsible safety professional and relevant authority rather than treating humanoid form as a regulatory category or safety guarantee.
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