The United States General Services Administration has published a standard for ambulance construction, KKK-A-1822F, which has been adopted by many states and localities, including Nebraska, Illinois, Mississippi, Oregon, and Decatur County, Indiana. Designs based upon the cutaway van chassis with modular bodies are defined as Type III. (Type I uses pickup truck chassis and Type II are straight conversion of van with a raised roof rather than a modular body.) This standard is due to be withdrawn in 2015 in favor of NFPA 1917.