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NQA launches OHSAS 18001 to ISO 45001 Gap Guide

ISO 45001:2018, the replacement of OHSAS 18001, was published on 12th March 2018. Not only has the standard superseded OHSAS 18001, it makes integration with other management systems simpler than ever before; because it shares the new common structure defined by Annex SL, it is directly aligned with the 2015 versions of ISO 9001 and ISO 14001. 


If you have certification to OHSAS 18001 you will need to migrate to ISO 45001 to maintain the validity of certification. There is the normal 3 year migration period so there is still time to plan your move over to ISO 45001.

New terms and definitions in ISO 45001

The new definitions of the terms ‘Risk’, ‘The Worker’, ‘The Workplace’ and ‘Hazard Identification’ may change for the following reasons:

Risk. A universal definition of the term ‘Risk’ is clarified in ISO 45001 as the meaning of this varies in some countries. The term ‘Hazard Identification’ is covered by the terms ‘risk identification and ‘risk control’ to ensure we encompass all potential hazards applicable to all industries and sectors.

The Worker. There are differences in the definition of this term and various legal constraints around this term in different countries – in the context of ISO 45001, ‘The Worker’ is defined as the person working under the control of the organisation and includes subcontractors.

The Work Place. There are questions amongst organisations regarding what the workplace is, is it your organisation’s site?

Preparing For The Future

Charles Corrie’s recommendations to adopters and non-users of OHSAS 18001 health and safety management systems: "existing users, don't panic!" 

Many clauses requirements of ISO 45001 are the same or similar to OHSAS 18001 – however they are presented in a different sequence and may use different terminology.

Advice to existing users:

  • Get a copy of the standard at 
  • Examine the changes
  • Do a gap analysis against your current OHSAS 18001 system
  • Start planning your migration

There are significant benefits to be realised by your business now.

How can we help you?

Watch our pre-recorded webinar for a presentation on how the ISO 45001 standard changes the way occupational health and safety management systems are implemented and certified.

You can also visit our website to download a copy of our handy OHSAS 18001 to ISO 45001 Gap Guide.

If you require any technical support or advice, or would like a quote for ISO 45001 certification get in touch with us today or call 0800 052 2424.

View the ISO:45001 2018 timeline - view larger version 

NQA launches OHSAS 18001 to ISO 45001 Gap Guide - 2018 timeline


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