Before introducing robots alongside workers, determine whether people need to work near or interact with the robot, identify every task that could put them in its work area, and document a worker-involved risk assessment of the complete application. Then confirm that safeguards, procedures, training, maintenance, and applicable rules address the risks found. A robot described as “collaborative” is not automatically safe for every task or workplace. OSHA’s guidance is U.S.-focused; the jurisdiction and application determine which requirements apply.
Use these questions with affected workers, the employer, and the people responsible for system integration and safety. Consider the robot as part of a system: the robot, its end-effector (tool), workpiece, surrounding equipment, work environment, and the tasks people perform. The right controls depend on that full application, not on the robot’s label alone.
1. Is worker-robot collaboration actually needed?
Start by defining what “alongside” means for the proposed work. Ask whether a person must be present during robot operation, share a workstation, work on the same item at the same time, or reach a known task location. Does the person need to touch the robot, its end-effector, or the workpiece while the system is moving?
These distinctions help determine whether people need to share space or interact with a moving system at all. If a task can be arranged so workers remain outside the robot’s operating area while it moves, assess that option alongside closer interaction before settling on a layout or operating method.
2. Which tasks could put a person in the robot’s work area?
Map routine production as well as foreseeable work outside normal production. OSHA notes that many robot accidents happen during non-routine activities when a worker may be inside the robot’s working envelope.
- Production: operating, loading, unloading, or handling the workpiece near the robot.
- Setup and changeover: programming, adjusting, teaching, or testing the system.
- Inspection and cleaning: checking the work area, tool, or equipment and removing buildup.
- Fault recovery: responding to a stoppage, unexpected movement, or other system problem.
- Service: scheduled or unscheduled maintenance and repair.
For each task, establish who may enter the area, where they must go, what the robot could do, and how the work will be made safe. Do not limit the review to the normal production cycle.
3. Has the complete application had a documented, task-based risk assessment?
Ask to see a documented assessment that considers the robot and the way it is actually used. It should account for the end-effector, workpiece, connected and surrounding equipment, location, environment, worker functions, possible human errors, malfunctions, and normal and emergency procedures.
Involve affected workers as well as the employer and relevant technical or safety personnel. Workers can identify how tasks are really performed, including access or recovery needs that may be missed in a design-only review. Keep the assessment and its records, and review it when tasks or the application change.
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OSHA’s Technical Manual, Section IV, Chapter 4, frames the central question this way: “Does this robot application have sufficient measures in place to adequately protect workers?” The answer should be supported by the assessment and the controls selected for the identified risks.
4. Are the robot and end-effector suitable for the planned interaction?
Check the robot and end-effector manuals to understand which safety functions are available and what conditions they are designed to address. Ask whether those functions fit the contact or separation situations expected in each task. OSHA’s guidance says the safety functions needed depend on anticipated contact situations and should be determined through the risk assessment.
Consider the tool and workpiece as well as the robot itself: an otherwise suitable robot does not establish that the complete application is safe when its tool, materials, layout, or intended interaction create hazards. A collaborative designation alone does not prove that a particular task is safe.
5. What controls address each identified risk?
For each risk in the assessment, ask whether it can be eliminated or whether workers can be separated from the hazard. Then determine what active safeguards and passive design features are needed for remaining exposures. Controls should follow the assessment rather than a generic checklist.
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- Design features: consider features such as rounded or padded edges and smooth covers where they reduce relevant hazards.
- Space and access: consider space delineation and signs, alongside clear entry and exit arrangements.
- Work procedures: establish written procedures for entering and leaving the area and for responding to the tasks identified in the assessment.
- Energy control: establish and follow applicable lockout/tagout procedures for servicing and other work that requires energy control. A product or kit alone does not make maintenance safe.
6. Do workers know the hazards and what to do?
Confirm that operators, programmers, maintainers, and others who may enter the area understand the hazards, safeguards, and applicable work procedures. They should know how to respond to faults and emergencies relevant to their duties. Include workers who may pass the robot perimeter as part of their work in awareness training, as OSHA advises.
Check that training matches actual responsibilities and the procedures workers are expected to follow. A procedure is not an effective control if the people who need it do not know it or cannot carry it out.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.7. How will safety be maintained after startup?
Before operation begins, clarify who is responsible for inspecting and testing safeguards and safety functions, how often those checks are performed, and how results are recorded. OSHA identifies testing records as a way to track safety and calls for maintenance plans and checks that safeguards function as designed.
Also define how maintenance and service are controlled, who may perform them, and how changes to tasks or equipment trigger a review of the risk assessment. Keep assessment, testing, and maintenance records where responsible personnel can use them.
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8. Which rules and standards apply at this site?
First establish the site’s jurisdiction and the application under review. OSHA states that there are no specific OSHA standards for the robotics industry; its robotics standards page lists consensus guidance including ANSI/RIA R15.06, RIA TR R15.606, ISO 10218, and ISO/TS 15066. OSHA explicitly notes that the listed national consensus standards are not OSHA regulations.
Use the standards relevant to the application as guidance, and verify current editions and facility-specific legal obligations before implementation. Do not assume a standard or legal requirement applies without checking the jurisdiction and circumstances of the work.
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