HSE is organised into a number of Directorates. The Hazardous Installations Directorate is the operational arm responsible for Major Hazards, including the Offshore Oil and Gas Industry.The chemical manufacture and storage industries fall within this definition of Major Hazards.

Inspectors deal with the industries on a day to day basis using a variety of methods. These include:-

• Inspection of operations
• Investigation of accidents and incidents
• Enforcement of statutory requirements
• Provision of information, guidance and advice
• Attending industry and trade association events/shows
• Working with stakeholders to identify, develop and promote good practice
• Contributing to research & standards development