ISO 10218-1:2025 — Safety Requirements for Industrial Robots — Compliance Brief
Record covered: robotics-cert-010 Issuing body: ISO Technical Committee 299 (Robotics). Jurisdiction: International; the global flagship robot-safety standard. In the EU it is harmonized as EN ISO 10218-1 (presumption of conformity to the Machinery Directive/Regulation EHSRs); in the US adopted as ANSI/A3 R15.06 Part 1. Status: ISO 10218-1:2025 published February 2025 — first major revision since 2011, after ~8 years of work (announced by A3, Feb 2025; verified).
1. What it is
Part 1 of the ISO 10218 series states the safety requirements for the industrial robot itself — the manipulator and its controller as delivered by the manufacturer. It treats the bare robot as partly completed machinery: a product that is not yet a complete, usable machine because its hazards depend on the application it will be integrated into. The standard is a Type-C standard under ISO 12100, meaning its provisions take precedence over Type-A/Type-B standards for machines built to it.
2. Scope — who and what it applies to
Robot manufacturers (OEMs) — small, medium, and large — designing and building industrial robots: articulated arms, SCARA, Cartesian/gantry, delta robots, and their controllers. It covers industrial robots only (service, medical, and personal-care robots are excluded). Health-and-safety bodies, regulators, and market-surveillance authorities use it as the benchmark for whether a robot was safely designed. Integrators and end users are not the audience for Part 1 — but they inherit its outputs (see Part 2 brief).
3. Key requirements and compliance obligations
- Inherently safe mechanical design: limit kinetic energy transfer — smooth surfaces, no sharp edges, guarded drives, consideration of clamping/crushing geometries.
- Safety-related control functions made explicit in the 2025 revision (previously partly implied): safe stop functions (IEC 60204-1 Stop Categories 0 and 1), safely-limited speed and position, mode selection with safety-rated monitoring, and enabling-device provisions.
- Kinematic and dynamic boundaries: the robot must enforce its safety-rated limits in hardware/software, not just document them.
- Information for use: the manufacturer must supply residual-risk documentation — the hazards that remain after the OEM's protective measures — because the integrator's Part 2 risk assessment starts from it. A Part-1-compliant arm with poor residual-risk documentation is a practical compliance failure.
- New in 2025: new robot classifications with corresponding functional-safety requirements and test methodologies; end-effector (EOAT) safety content folded in from ISO/TR 20218-1; functional-safety requirements stated explicitly rather than implied, easing alignment with ISO 13849 / IEC 62061 performance levels.
- Terminology shift: the 2025 edition no longer uses the term "collaborative robots" — collaboration is a property of the application, not the robot (see the Part 2 brief).
4. Penalties / consequences of non-compliance
No fines attach to the standard itself. Consequences run through the legal regimes that reference it: in the EU, failure to meet the harmonized EN ISO 10218-1 version forfeits the presumption of conformity to the Machinery Regulation's EHSRs — the CE marking loses its technical basis and market-surveillance authorities can order withdrawal. In the US, OSHA uses the standard to establish hazard recognition and feasible abatement in General Duty Clause enforcement after robot incidents. Commercially, integrators and automotive OEMs require Part 1 compliance (and the residual-risk file) as a purchasing condition; a non-compliant arm is unsellable into serious automation supply chains. After an incident, the plaintiff's expert will read the standard to the jury.
5. Version and edition status — live changes
- ISO 10218-1:2025 is current (published Feb 2025; verified via A3 announcement and ISO preview text).
- National adoptions in progress: US adoption as ANSI/A3 R15.06-2025 Part 1 (published Sept 2025); Canadian adoption as CSA Z434 underway (per A3, 2025).
- EU harmonization: expect the EN ISO 10218-1:2025 citation under the Machinery Regulation as CEN completes the work — until cited, the presumption of conformity formally rests on the older harmonized version. Track the OJ citation list.
- Flag: the detailed technical deltas above (explicit functional safety, classifications, EOAT content) are verified via A3/IDEC/industry summaries of the 2025 revision, not a clause-level reading of the paywalled standard text.
6. Related certifications
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Robotics — A3 Certified Robot Integrator (robotics-cert-001): integrator credential whose body of knowledge assumes Part 1-compliant robots and their documentation.
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Robotics — TÜV Rheinland Functional Safety Engineer, Machinery track (robotics-cert-007): the functional-safety competence (ISO 13849/IEC 62061) that implements Part 1's explicit safety-function requirements in controllers — e.g. TÜV-certified robot safety controllers assessed against IEC 61508.
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Cybersecurity note: the 2025 revision's explicit functional-safety treatment intersects with the EU Machinery Regulation's new "protection against corruption" EHSR - networked robot controllers with remote-access or fleet-management features should have their safety functions threat-modelled, not just functionally validated.
7. Flags and honest caveats
- Part 1 compliance by the OEM does not make the installation safe — that is Part 2's job. Procurement contracts should demand both the Part 1 conformity evidence and the residual-risk information the integrator needs.
- The "partly completed machinery" framing matters legally in the EU: the OEM issues a declaration of incorporation, not a CE-marked declaration of conformity, for the bare robot.
Original ETS reference writing, verified against public sources on 2026-09-30. Thin sourcing is flagged inline. Not legal advice — confirm current editions with the issuing body.