What's your experience in designing IMS using ISO 9001, OHSAS 18001 and ISO 14001?

As per my experience that is very good to design IMS becasue basis of all standard is same & all above three standad are very much interlink to each other accept once it come to address process.
IMS also save cost & time of any company because company has to adopt at one time IMS therefore training cost , internal audit cost, survellian audit cost + external audit cost reduces dramatically.
The amount of paper work also reduce as you have to design one manual which based on IMS.
So in conclusion I have enjoyed to work on IMS & looking forward to work more in this area. 

Thank so much, Aftab.
Your points are well noted especially the issue of overall reduction in production cost and time.

IMS also save cost & time of any company because company has to adopt at one time IMS therefore training cost , internal audit cost, survellian audit cost + external audit cost reduces dramatically. 

I have implemented Integrated managemet system and integrated QEHS manaual for Lufkin and GE according to ISO 9001:2008,ISO 14001:2004 and OHSAS 18001:2007 in addition to API iso 29001 where I have integrated QEHS policy,objectives, audits,management review in addition to very specific clauses such as :

environmnetal aspects which related to ISO 14001 and risk assessment which is related to OHSAS 18001 and all IMS is aimig at:

customer satisfaction

continual improvement

participation of all employees

 

organization that have more then one formal management system have found that they can benefit significantly by merging all their systems in one system' business management system"