Grounding Gas Lines In Attic Space

Good morning,

What is the rule on grounding gas lines in attic space. I have seen some locations grounded while other are not. When I cal this out on my report I get some contractors who just do it, while others claim it’s not necessary because of the “whole house” ground. The attachment shows a system with a separate ground attachment installed…but like I said I have seen others with nothing.

Looking for a definitive answer.




Maybe these will help