Often times the wiring to get to the canopy runs through a classified area. You may need Art 500 wiring methods for the portion of the raceway that is effected.
I have seen some places run tank ventilation up the inside of canopy posts and the vent is on top of canopy. There is a classified area near the vent if they do this.
I suggest you read through Art 514 and see what applies to you, depending on how things are arranged it may not involve any classified area or it could all be in a classified area, my guess is at least some of it is going to be in a classified area.