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UABs for Large Urbanized Areas were coordinated and approved by the governing Metropolitan Planning Organizations then assessed and approved by the Georgia Department of Transportation, and lastly, approved by the Federal Highway Administration. Small Urban Area boundaries were coordinated by Georgia Regional Commissions and GDOT, and lastly approved by the Federal Highway Administration. The adjusted urban area boundary is to be reviewed and updated by the GDOT Office of Trasportation Data on an approximate 10 year schedule, after each decennial census is complete. 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