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Machinery Regulation 2023/1230:
what fundamentally changes for OEMs
Not an update of the old directive — a system change. AI in safety functions, OTA updates with CE consequences, new documentation duties from 20 January 2027.
What changes for my machines? Request initial callOld vs new
Machinery Directive vs Machinery Regulation
Source: MRO (EU) 2023/1230 vs. Machinery Directive 2006/42/EC
| Machinery Directive 2006/42/EC (OLD) | Machinery Regulation 2023/1230 (NEW) |
|---|---|
| Software not a separate regulatory object | Software explicitly part of the machine |
| AI/ML: no specific requirements | AI in safety functions = high-risk component |
| Software updates after CE unregulated | Substantial change via update → new CE procedure |
| Safety functions: classic electrics/mechanics | Including self-learning and adaptive systems |
| Directive → national transposition | Regulation → directly applicable in all EU member states |
Substantial change
When does a software update trigger a new CE procedure?
Source: MRO 2023/1230 Art. 2(3)
- Change creates new risk or increases existing risk
- A safety objective of the original conformity assessment is affected
- Original risk assessment is no longer valid
- AI component with safety function: any substantial change to model or training data
The OTA update that changes everything
An OEM ships 3,000 machines to 12 EU countries. The next software update optimises ML-based safety monitoring. The update improves detection rate by 8%.
Update affects a safety function → substantial change under Art. 2(3) MRO 2023/1230 → new conformity assessment required.
Without prior planning: the update cannot be rolled out until CE re-assessment is complete.
With 3,000 installed machines on the same software: all affected.
Use cases
AI in safety functions: affected use cases
Source: MRO 2023/1230 Annex I (Essential health and safety requirements)
Adaptive safety shutdown based on ML anomaly detection
Collision detection in autonomous robotics (chemical, pharma plants)
AI-assisted pressure monitoring and valve control in process plants
Predictive maintenance with intervention in safety circuits
Vision systems for hazard zone detection
Standards
Technical standards as assessment basis
| Standard | Content | MRO relevance |
|---|---|---|
| EN ISO 13849-1:2023 | Functional safety of machine controls — PL a–e | Safety function risk assessment; AI in PLr-relevant functions |
| IEC 62061:2021 | Functional safety of machinery — SIL 1–3 | Alternative to ISO 13849 for electrical safety |
| IEC 61508:2010 | Functional safety E/E/PE systems — base standard | Basis for IEC 62061; adaptive AI in safety controls |
ISO/IEC 42001:2023
As AI management system provides a structural framework for AI Act-compliant documentation of the AI safety component — covers ~70–80% of EU AI Act requirements but does not replace conformity assessment.
Related regulations
EU AI Act and CRA
EU AI Act: when safety function uses AI
AI in MRO safety functions → automatically high-risk under EU AI Act Annex I → 12 Art. 16 duties in addition to MRO.
EU AI Act for machinery OEMs →CRA: firmware duty
Every firmware/embedded software in the safety system = product with digital elements → CRA duties from 11 Sep 2026.
CRA for embedded systems →What we deliver
MRO readiness for OEMs
- Analysis of substantial changes for software updates (Art. 2(3) MRO)
- Conformity path analysis for ML-based safety functions
- Risk assessment update for AI-extended machinery (EN ISO 13849-1)
- Bring legacy controls to CRA/MRO-compliant state
- Retrofit instead of replacement — technical documentation included
Check MRO readiness
We analyse substantial-change risk for OTA updates, AI safety functions, and your conformity path under the Machinery Regulation.
Check MRO readiness