This four-page graduate paper is on "The National ITS Architecture". It includes the relationship of standards to ITS Architecture, and lists all standards, and explains each how it is useful in carrying out data flow with examples. It also includes that what are the three key areas for which ITS standards are developed and why? It shows From ITS Architecture Market Package (ATMS4) which standards can be used and why? 4 pgs, bibliography lists 4 sources.