Dear Sir,
With regard to OHSAS 18001:2007, I would like to add some more thing . In 1996 the ISO14001:1996 was released which was so simple and user friendly organizations stated showing interest in this standard.
In the same year in England the BS8800:1996 was released for Occupational health and safety management system .In 1999 the OHSAS 18001 :1999 was released as ISO has not approved the OHSAS standard.
About 13 certification bodies joint together and released the OHSAS 18001:1999 based on BS 8800:1996 but it took the structure of the ISO14001:1996. The British standard Institute published this standard, but please note it is not BSI standard.If you compare the ISO14001:1996 with OHSAS 18001:1999 and ISO14001:2004 with that of OHSAS 18001:2007 you can find that there is no difference in the structure of the system.
There is guidance standard OHSAS 18001:2008 which explains the standard.
But one day will come when we may get one standard for Quality, environment and Safety & health management system as one can not separate all these.
regards,
T.S.SRINIVASN