Comparison guide: ISO 45001:2018 and OHSAS 18001:2007

ISO 45001 is the new international standard for Occupational Health and Safety (OH&S) management and will replace the existing OHSAS 18001 standard. While both standards have the same goals in terms of improving OH&S performance to prevent work–related injury and ill health, ISO 45001 uses the same common text and high–level structure (known as Annex SL) as standards such as 9001 and 14001.

This will bring OH&S management and continual improvement deeper into the core of an organization. Although the requirements are not identical, this guide gives an overview of how the structures of the two standards compare.

ISO 45001:2018 and OHSAS 18001:2007