This question is related to the OP question. Maybe it should be in a new post:
I have an electrical service entrance made up of several steel enclosures (meter, disconnect, MLO breaker box), with conductors in EMT that make the connections. Per 250.118 The EMT can be the primary EGC. But I read of AHJs requiring supplemental ECGs in bare copper to connect the grounding lugs of the various components. Regardless of inspector preference, under what conditions would it make sense to add a wire EGC in a system assembled with EMT between metal enclosures? Assume listed components (fittings, etc) made up tight and used per manufacturer instructions.