Maximum wire size required for Grounding Electrode Coonductor

[tx2step]

My understanding is that #3/0 copper is the maximum size grounding electrode conductor (such as the GEC to the building steel or metal water pipe), regardless of the size of the service. So a 1000A or a 2000A service would still require only a #3/0 GEC to the building steel. Right?

 

[charlie b]

Correct. Reference Table 250.66.

 

[tx2step]

Correct. Reference Table 250.66.

Good, that's what I thought. I was looking at that table, but wanted to make sure I was understanding it correctly.

Thanks!!!