Federal Highway Administration (FHWA)FHWA is a major agency of the U.S. Department of Transportation (DOT). While State, local, and tribal governments own most of the Nation?s highways, FHWA provide financial and technical support to them for constructing, improving, and preserving America?s highway system. The Electronic Reading Room covers Electronic Centralized Agreement Library (E-CAL); Intelligent Transportation Systems; Legislation and Regulations and so on.