If lightning strikes a structure containing CSST, there is a risk the lightning can travel into and through the structure’s natural gas piping system and cause a leak, or in some cases, a fire. A proper bonding or grounding device will reduce the chances of a natural gas leak or fire. It is safe to use when properly grounded.
If you find CSST in your home or business, customers should hire a licensed electrician to inspect the equipment to ensure it is properly grounded.
Customers can get more information at http://csstsafety.com/CSST-primer.html