If you need to move heavy cargo across your state that can't be separated into smaller loads without damaging or devaluing the goods, obtain a blanket permit fast. A blanket permit allows you to transport overweight or oversized loads safely and legally throughout the year. Learn more about blanket permits and how you can obtain your permit below. What's a Blanket Permit? Blanket permits allow you to transport oversized or overweight cargo in or outside your state.