ECN Forum Forums General Topics of the Trade General Discussion Area Bonding galvanized gas lines inside a house

You also need to remember the "likely to become energized" language in 250.104(B). An isolated section of metal pipe that is nowhere near a source of electricity is not likely to become energized. That is where the AHJ ends up making the final call. It might be nice if there was more guidance on this but the NEC is the size of a small city phone book now