I just had the inspector by to review a 200A combo service entrance panel. He had one comment with respect to the equipment grounding conductor for my 240 volt circuits (3 total). He said each had to home run back to the service entrance and I could not pigtail in a junction box and then run one conductor back as a home run. I thought the code allowed the sharing of an equipment grounding conductor. Could someone point to the code section which confirms or disproves my belief? Thanks in advance.