Section 325, International Highway Transportation Outreach Program, of the 1991 Intermodal Surface Transportation Efficiency Act; a bibliography on international transportation policies (1993); a list of U.S. participants in PIARC (Permanent International Association of Road Congresses) committees and groups (1994).

Issuances by various organizations promoting the creation of a national transportation policy, including a proposed policy issued by AASHTO (American Association of State Highway and Transportation Officials, 1992); a report by a Minnesota scenic byways task force (1991); a fat set of ISTEA (Intermodal Surface Transportation Efficiency Act) subject matter fact sheets [ca. 1991-1992]; and two U.S. Dept. of Transportation news releases (1990, 1991) on a national transportation policy.