
Does adoption of an 18001 certified SMS improve safety performance following 3 years after implementation? Possibly not.

805 certification adopters were compared to 12k matched non-adopters.
Summary posted next week.

Key findings were:·
“This longitudinal register-based study could not confirm that workplaces adopting COHSMS reduce reportable severe accidents at work within a three-year follow-up”
· “Already before the date of certification, the adopting workplaces had a lower rate of severe accidents at work compared to non-adopters. This indicates that adopters have a higher OHS performance than the average workplace”
· Nevertheless, “adopters did not reduce the risk of severe accidents at work further during the three-year follow-up’
· “These results call into question COHSMSs as an instrument for improving safety in the workplace”
· “Our results support earlier findings that show that workplaces that adopted COHSMSs have a better OHS performance, but the present study cannot provide evidence that COHSMS contributed further to this superior OHS performance”


Authors: Dyreborg, J., Thorsen, S. V., Madsen, C. U., & Hasle, P. (2024). Effectiveness of OHSAS 18001 in reducing accidents at work. A follow-up study of 13,102 workplaces. Safety Science, 177, 106573.
Study link: https://doi.org/10.1016/j.ssci.2024.106573
My site with more reviews: https://safety177496371.wordpress.com
Makes you wonder how many ISO standards this finding also applies to. Standards and accompanying audits – in my experience, quickly take on a life of their own; disconnected from reality.
LikeLiked by 1 person
Yes I strongly agree.
LikeLike