That is why I posted the question. I too assumed that the EGC and EMT would allow for a four wire feeder to the 200 amp sub panel. But I am getting conflicting advise on this matter. Several members at the Mike Holt forum have indicated that I need a bonding conductor seperate from the feeder to the sub panel, to go all the way to the house unbroken and connected to the water line at the house. Just as if the new service was at the house. I have also been advised that I can go with a three wire feeder since I am using EMT. I am going to contact the inspector and see what he requires. thanks for your feedback fellow forum members.......John
ps....400 amp service is needed for the new testing facility that will be in the garage.
