Gastite requires that a gas piping system containing a section of Gastite Yellow CSST be direct-bonded to the existing grounding system of the premises.
National fuel gas Code, and International Fuel gas Code Direct Bonding Requirement:
CSST gas piping systems shall be bonded to the electrical service grounding electrode system. The bonding conductor shall be connected to a metallic pipe or fitting between the point of delivery and the first downstream CSST fitting. The bonding conductor shall not be smaller than 6 AWG copper wire or equivalent.