This section of the TIFIA website provides lists of the Letters of Interest and Applications received by the TIFIA Credit Program from its inception to the present time. These projects illustrate the dynamic nature of the TIFIA program, which provides credit enhancements to public and private sector entities to support the implementation of projects across a wide array of surface transportation modes. The projects included in these lists are in all stages of planning and development. Some developers may be seeking TIFIA credit assistance in the near term; some may be interested in longer term assistance; and others may no longer be considering TIFIA assistance or may have already implemented their projects without TIFIA support. The volume and timing of these letters and applications also provides a historical record of the demand for TIFIA credit assistance since its inception.