The Iowa Department of Transportation (DOT) is the central authority for all vehicle-related services in the state, including issuing driving licences, titling and registering the large volume of vehicles, including popular models such as the Ford F-Series and the Chevrolet Silverado. One critical service detailed here is the Vehicle Identification Number (VIN) check. This is essential for used car buyers, as it protects them against common scams such as odometer fraud, title washing and VIN cloning. This is particularly important given the state’s limited Lemon Law protection for pre-owned cars. The text highlights resources from the DOT, NHTSA, and NICB for conducting these essential VIN lookups. The text also covers the mandatory titling and registration process for new cars within thirty days of purchase and provides statistics on registered car types, traffic congestion and efforts to reduce fatalities resulting from accidents and violations such as speeding and not wearing a seatbelt.