Given the size of the service... the legislation in effect in your jurisdiction may require that stamped engineered drawings for this project be submitted to the AHJ for approval.
For example... In my jurisdiction, plans for all projects, except for single family homes, must be submitted for plan review. As well, drawings for all projects with a service larger then 400 amp single phase or 200 amps three phase or any with a system voltage greater then 750 volts must be stamped by an electrical engineer before they are submitted for the review process.
