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The Census Bureau designates a new list of Urbanized Areas (UZAs) every 10 years, following the conclusion of each decennial census. The designation of UZAs by the U.S. Census Bureau has significant implications for the metropolitan planning process. Most significantly, current Federal law requires that every UZA be represented by a metropolitan planning organization (MPO) which carries out the metropolitan transportation planning process for the UZA and surrounding areas. Furthermore, UZAs with populations exceeding 200,000 are designated as Transportation Management Areas (TMAs) bringing additional responsibilities. |