It depends upon the reasons why an organisation seeks certification to OHSAS 18001, which in turn are likely to depend upon a variety of factors. When implemented properly for the RIGHT REASONS, it should add value

There is IOSH Guidance, "Systems in Focus- Guidance on occupational safety and health management systems" http://www.iosh.co.uk/in...ca257a19c&version=-1 Section 7 covers advantages & disadvantages

You can get into a vicious circle wth standards like 18001 - specified as requirements in tender documents that prospective contractors and suppliers strive to achieve. Some of the best management systems are developed in house, tailored to fit the business, rather than forced to fit. Have a look at some basic HS(G)65 type stuff and set your own standard.

Work with 9001, 14001 & 18001. Adds structure and guidance and if belief is there from the top down with support, helps to stop some silliness especially with sales personnel. Worth the effort if you think it through and match processes, 15 procedures cover all 3 standards.

Following on from Victor's comments, I think 18001 is indicative of many of the initiatives now in industry where the focus appears to be on the processes rather than the outcome. Those organisations who truly want to improve their systems and processes will no doubt get some benefits from prescriptive standards like 9001, 14001, 18001. However, many organisations achieve those standard simply because clients or prospective clients require it as part of the procurement process. You could of course have a fully compliant 18001 system but a poor health and safety culture, that is the thing I find difficult to reconcile. It's a case of never mind the quality, feel the width. Indeed, I have worked in a number of organisations where they have these standards but in truth their systems and documentation are...pants. Meanwhile, suffering from death by audit at the moment - a CDM audit to look forward to next week.