HotLine, you caught me in a major mis- speak. Probably best to bleep out my earlier comments about running the GEC in the meter base and explain what I was really thinking about before I had a senior moment.
My typical service change does not have separate base, disconnect, and overload components. All three are contained in the same “all in one” panel. In these panels you land the GEC to the ground bus. A factory installed bar bonds the neutral buss to the ground buss.
The “other” way — and here is where I got confused — is done where you have several services supplied by one service drop. Imagine an apartment building or RV park. Here there is a main disconnect before the meters. When all these services are in the same building, the GEC lands in the main disconnect. When the meters serve different structures there are additional ground rods at each structure, with those GEC’s landing on the ground buss.
When I have separate structures, I maintain separation of the neutrals from the grounds from individual disconnect at each meter. That’s the only place where the grounds and neutrals bond.
I apologize for my confused answer above.