Integrated Management Systems ISO 9001 – 14001 – 45001 – High Level Structure

16 April 2021

Both in the field of quality (ISO 9001), both in the environmental field (ISO 14001) and in the field of health and safety in the workplace (ISO 45001, formerly OHSAS 18001), the Management Systems represent a voluntary tool for self-control and empowerment for an organization
company, aimed at achieving and obtaining compliance with the applicable requirements (regulations, laws, regulations, etc.) and at continuous improvement in terms of quality, environmental impact, protection of health and safety in the workplace.

Therefore, these are management tools that DO NOT replace existing laws, decrees and regulations, but that have their contours and work side by side to try to implement them in the best possible way and to reach even higher performance standards.

With the 2015 editions of 9001 and 14001, and with the publication of the new 45001: 2018 standard, the ISO has developed and defined its new HLS – High Level Structure model. This expression indicates a structure, an architecture typical of the regulatory schemes that ISO has introduced more recently, common to the various standards.

The high-level structure, common to the various standards, focuses on a common and shared terminology, text, definitions, titles and sequence of topics. Furthermore, ISO wanted to dare, precisely in the HLS, to give greater weight to the concept of risk management, which in fact represents the common basis of the various standards.

The aim is to make the structure and key contents of management systems uniform, to facilitate their integration and use by organizations. The decision to introduce and maintain a high-level structure, the same for the different types of rules on management systems, also derives from an increase in the rules over time, which in some cases has generated contradictory situations, such as the definition of common processes with different terminologies or a management of manuals referring to different regulatory structures.


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