I,m burying 2-2" pvc pipes for a doctors office. Service is 120/240 single phase and conduit is under a driveway. According to the code 24" cover is needed. My problem is this, the inspector neither passed nor failed me but insisted right before I reached the power pole , for utility hook up, that I buried these conduits with minimum 36" cover. Should I grab my shovel or argue the point of 24" cover. Does he have the right to make up his own rules beyond the NEC??