Rule 528a.
Section G2411.1.1 (310.1.1) of the code is amended to
read as follows: G2411.1.1. CSST. Corrugated stainless steel tubing (CSST) gas
piping systems shall be bonded to the electrical service grounding electrode
system or where provided, lightening protection electrode system. The bonding
jumper shall connect to a metallic pipe, pipe fitting, or CSST fitting between
the point of delivery and the CSST utilizing a device listed for the
application. The bonding jumper shall be not smaller than 6 AWG copper wire or
equivalent, not longer than 75 feet and accessible. Gas piping systems that are
bonded in accordance with this section shall be considered effectively bonded
regardless of the amount of CSST in the system. Any additional grounding
electrodes used shall be bonded to the electrical service grounding electrode
system, or where provided, the lighting protection grounding electrode
system.
Exception: CSST piping systems tested and listed by the
manufacturer for installation without additional bonding when installed in
accordance with the listing.
