TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 366: Tribal Transportation Programs explores innovations and model practices among tribal transportation programs. The report also examines the history, and legal and administrative evolution, of tribal transportation programs within the larger context of issues of tribal sovereignty and relationships with federal, state, and local governments, and local and regional planning agencies.  This topic is published at https://www.trb.org/news/blurb_detail.asp?id=7746