Here is my scenario: I installed a 27kw generator with automatic transfer switch at a 12 year old house. I called to have it inspected and the inspector fails the job because the existing gas lines in the house were not bonded to the panels. He says that because the plumber used CSST gas lines(the yellow flexible corrugated lines)to connect from the apliances to the galvanized piping that the system must be bonded at the point where the gas service enters the building. Has anyone else ever come across this?