I had the inspection today on the service upgrade from 100 to 200 amps (the infamous panel that had to be moved from above the dryer to the other side of the wall). The inspector passed the installation, but was not satisfied with the EGC in the 12 gauge cable feeding the furnace as providing sufficient bonding for the gas pipes in the home. He said just jump to the gas pipe from a point on a cold water pipe. So I ran a continuous piece of #4 copper from clamp to clamp around the water meter, then to a clamp on the gas pipe that feeds the water heater 4 inches away. This is an older house, where 100% of the water pipes are copper, and 100% of the gas pipes are iron; no non-metallic pipes mixed in anywhere. There is #4 copper wire running from the neutral buss of the main panel to a clamp on the water pipe where it enters the home. I just wanted to see if my method described above of bonding the gas pipes was acceptable, or do they also need to be bonded right where they enter the house?