# CSST bonding question 2

**URL:** <https://forum.nachi.org/t/csst-bonding-question-2/159457>\
**Category:** Electrical Inspections\
**Created:** [December 28, 2019, 12:31am UTC](https://forum.nachi.org/t/csst-bonding-question-2/159457 "2019-12-28T00:31:32Z")\
**Posts on this page:** 1\
**Page:** 3

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**Author:** ![srechkin](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/srechkin/32/180448_2.png) [@srechkin](https://forum.nachi.org/u/srechkin)\
**Post date:** [December 29, 2019, 8:56pm UTC](https://forum.nachi.org/t/csst-bonding-question-2/159457/41 "2019-12-29T20:56:46Z")

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As of NFGC (NFPA 54) 2018:

1. “arc-resistant” (conductive black jacket) CSST only requires a bonding to an effective ground-fault path and is considered bonded if connected to an appliance that is grounded via its EGC (unless local codes say otherwise)

2. an above ground in or attached to a building gas system with any yellow jacket (none arc-resistant, none conductive) CSST requires “additional” bonding, even when connected to a grounded appliance, for “lightning protection”, usually accomplished with a clamp and a bonding jumper (no longer than 75 ft, #6+) connected directly to the grounding electrode.

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