I have a customer in Woburn Ma that has diesel trucks that they plug in during the cold weather. My thought is that these 20amp 125v outlets need to be GFI protected as they are located outside in a parking lot. They have had instances when the GFI have tripped and they can?t start their trucks in the morning. They want to remove the GFI?s and install duplex outlets so that they don?t trip. I have research if this would be feasible to do and can?t find anything that says this would be acceptable. Any thoughts would be great.