I've been coming to this site for awhile now and have got some good information here. That is why I come to you all with this question. I work in a factory which getting ready to partake in the OSHAS 18001 safety program. I don't know if anyone is familiar with this or not, but as the electrician and maintenance guy on sight I was asked to check the grounding system of the building. I'm not really sure what kind of checking they want me to do, but I thought maybe someone here has done this sort of thing before and could give me a heads up on maybe what they want and how to do this. I called the AHJ for this area and he didn't really know of anything to tell me. Thanks for your help.