Iso 3691-4 Pdf ((free)) Here

Typically every 5–7 years. The 2011 version was replaced in 2020. With the 2024 amendment, the next full revision is expected around 2027.

The standard, titled "Industrial trucks — Safety requirements and verification — Part 4: Driverless industrial trucks and their systems," is the primary international safety benchmark for Automated Guided Vehicles (AGVs) and Autonomous Mobile Robots (AMRs). First published in 2020 and updated in June 2023 , it provides a rigorous framework for designing, integrating, and operating autonomous material handling equipment in industrial environments. Iso 3691-4 Pdf