The OHSAS 18001 standard (which is often mistaken and incorrectly identified as ISO 18001) is a framework for assessing and auditing occupational health and safety systems throughout an organisation and is part of the OHSAS 18000 series of standards.

Like an ISO standard it requires processes and procedures to be implemented which identifies and controls health and safety risks to their workforce or contractors operating on their premises or whilst undertaking a job or a service on behalf of the organisation. Having an effective management system in place demonstrates an organisations commitment to the welfare of its staff and resources.

BS OHSAS 18001 has now been replaced by ISO 45001, the new international standard for occupational health and safety. Organisations who are already certified to BS OHSAS 18001 are required to upgrade to ISO 45001 by March 2021[1]

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