Have you ever wondered why people choose to defeat a risk reduction measure that is meant to keep them from being exposed to a risk? Join us for a 30-minute webinar where we will discuss the motivation to defeat.


ISO 14119 has contained some information on this topic since the 2013 edition, and recent updates to ISO 13849-1:2023 added requirements on minimizing the motivation to defeat safety functions.


We will discuss the process of identifying the root cause of the motivation to defeat risk reduction measures and some of the methods that can be taken to reduce it.

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Relevant Standards and Technical Reports


Multiple standards highlight the importance of identifying and addressing the motivation to defeat risk reduction measures, including , ANSI B11.0 (2020), ISO 12100:2010, ISO 13849-1:2023 and ISO 14119:2013.


A Risk Assessment should identify the tasks that need to be completed. When risk reduction measures are selected, what is the impact on those tasks? Do they create a motivation to defeat?

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Studies on the Motivation to Defeat.


Industry research has shown that the motivation to defeat risk reduction measures may be more common for certain tasks such as maintenance or troubleshooting. More information can also be found at Stop-Defeating.org





Setting the Scene 


Study on Motivation to Defeat


Safety Standards


Reduce Motivation to Defeat


How interlocks are Defeated


Additional Measures


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