Iso 3691-4 Pdf May 2026

ISO 3691-4 is the primary international safety standard for driverless industrial trucks

The 2023 version (ISO 3691-4:2023) replaced the 2020 edition with several technical improvements: ISO - International Organization for Standardization Iso 3691-4 Pdf

Where to Legally Obtain the ISO 3691-4 PDF

The standard is copyrighted by ISO (International Organization for Standardization). You cannot legally get it for free from ISO. However, you have several legal purchase options: ISO 3691-4 is the primary international safety standard

Key topics and structure (typical contents)

• Normative references and terms/definitions specific to driverless industrial trucks.
• Classification of vehicle types and operating modes (e.g., supervised, unsupervised, teleoperated, collaborative).
• General safety principles: hazard identification, risk assessment, risk reduction hierarchy.
• Functional safety requirements for control systems (including sensors, navigation/positioning, motion control, emergency stop).
• Obstacle detection and avoidance: sensor requirements, sensing fields, detection zones, reaction strategies.
• Human–machine interface and signaling: warnings, status indicators, audible/visual alerts, operator controls.
• Protective measures: speed limits, safe stopping distances, physical barriers, soft-stop zones.
• Requirements for fail-safe behavior, fault detection, diagnostics, and degraded-mode operation.
• Interfacing with other systems: fleet management, traffic control systems, facility infrastructure.
• Installation, commissioning, verification, validation, and periodic inspection/maintenance.
• Documentation and training requirements for operators, maintainers, and persons in the operating environment.
• Markings, labeling, and information supplied by the manufacturer (e.g., limitations of use, environmental conditions).
• Annexes: examples, calculation methods (safe stopping distances, reaction times), and guidance on risk assessment.

Key Exclusions: The standard does not cover trucks guided solely by mechanical means (like rails), remotely controlled vehicles, or operations in extreme environments such as nuclear zones, explosive atmospheres, or public roads. Key Safety Requirements Key Exclusions : The standard does not cover

For professionals seeking the official documentation, the ISO 3691-4 PDF can be purchased from authorized distributors such as Accuris ($259) or the ISO Store. Core Scope and Application