If I make changes to my car can it affect its classification class?
Part 106 of DMV Regulations which describes the distinction between vehicles in the 'Commercial' class and in the passenger class, also describes how some modifications that you make to your vehicle can affect its correct registration class.
Do you know about  the commercial registration class, and do I need to order passenger plates?
You are not required to request passenger badges for your pickup. You can use commercial dishes.