Most of the plans that I review that are drawn by an EE always exceedes the mimimun NEC requirments . When I approve the plans , the job will done accordingly. The ony way to change anything in the plans,will be a letter from the EE and (those changes must meet or exceed the NEC requirments). From time to time electrical contractors ask us to help design an installation, however, I refuse to take part in a design issue. As AHJ we are not design consults.