Iowa's Statewide Transportation Improvement Program (STIP) has been developed in conformance with the guidelines prescribed by 23 USC and 49 USC. The STIP is generated to provide the Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) a listing of all projects that are candidates for federal aid from the FHWA and FTA for four federal fiscal years (FFY). Preceding the listings of federal-aid candidates are general comments concerning Iowa's public participation process for selection of federal-aid projects and the basis for funding the proposed projects. Documents evidencing the Iowa Department of Transportation's (Iowa DOT) authority to act concerning matters related to transportation, federal-aid expenditures and approvals of Metropolitan Planning Organizations' (MPOs) Transportation Improvements Programs (TIPs) have been provided in past STIP's and can be provided again upon request.