In 1904, the first State Highway Commission was created; the law provided that Iowa State College should act as the commission and advise local authorities regarding highway improvements. A decade later, in 1913, the General Assembly passed an act creating a new State Highway Commission, severing the ties to the college. Over the years ever increasing duties governing the states road system (primary and secondary) were added to the Commission. In 1975, the Highway Commission became a part of the newly created Department of Transportation responsible for coordinating all of the various facets of Iowas entire transportation system. The records included in RG 96 Transportation in the Archives holdings are limited to administrative records for the department and to records from its aeronautics and highway divisions. For records pertaining to railroad and motor transport, refer to RG 105 Railroad Commissioners/Transportation Regulation. The following is a list of records in the Transportation record group: