Hello, I inspected a home where the main disconnect was in the detached garage. This panel had its own grounding electrode. The panel in the home also had a grounding electrode. Should the panel in the home be seen as a down-stream (sub-panel) and have a floating neutral buss and separate grounds and neutrals. If you are aware of any other issues with this arragnement please feel free to comment. Pictures are included for your review. Thank you in advance for your assistance. Click to Enlarge 62.63 KB Click to Enlarge 67.32 KB