Underground gas piping is not to be used as a grounding electrode. All underground gas piping will require a dielectric coupler to be installed in the system as it exits the earth and prior to entering the structure.
ICC A117.1 (Latest Edition)
- 2021 International Residential Code
- 2021 International Building Code
- 2021 International Mechanical
- 2021 International Fuel & Gas Code
- 2009 International Energy Conservation Code
- 2021 Fire Code
- 2021 Plumbing Code
- 2020 National Electric Code
- 2018 SC Modifications (see LLR for listing of modifications) [PDF]