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FACTORS INFLUENCING THE SAFE MANAGEMENT OF CONTRACTORS ON MAJOR HAZARD INSTALLATIONS
Contractors are increasingly being used on major hazard installations and now perform many critical roles which can directly cause and prevent hazards. Operating companies have to manage the interfaces with these contractors carefully as experience has shown that fragmented systems and inadequate control of contractors have contributed to a number of recent accidents. This paper summarises the reasons for using contractors and the typical roles performed by different types of contractor (such as design, installation, maintenance, outsourcing of non-core activities, specialist EHS (Environment, Health and Safety) support). Recent incidents in a number of industries which have been exacerbated by poor contractor management are then reviewed and learning points from these incidents are identified. The types of problem which can be caused by contractor interfaces are then summarised and good practices/risk controls are identified for minimising these problems. These contractor management issues are critical within the COMAH (Control of Major Accident Hazard) Safety Case regime for chemical manufacturing companies.
KEYWORDS: COMAH, contractors.