At least once every four years, the U.S. Department of Transportation (DOT) must certify that a metropolitan planning organization (MPO) serving a Transportation Management Area (TMA) – an urbanized area with a population over 200,000 – is carrying out the metropolitan transportation planning process in adherence with federal requirements under 23 U.S.C. 134 and 49 U.S.C. 5303. The Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) jointly conduct this review, make a certification determination, and produce a report that may include compliance issues (corrective actions), areas for improvement (recommendations), and/or notable practices (commendations). Based on these findings, the MPO will either be “certified,” “certified with conditions or restrictions,” or “not certified”.