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181. USA (MPO Boundaries, 2006)

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS), Federal Highway Administration, Office of Planning, Environment, & Realty, Research and Innovative Technology Administration's Bureau of Transportation Statistics, and Federal Highway Administration. The United States Metropolitan Planning Organization database is a geographic database of Metropolitan Planning Organization political boundaries. U.S. Bureau of Transportation Statistics (BTS).

182. USA (MPO Boundaries, 2008)

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS), Federal Highway Administration, Office of Planning, Environment, & Realty, Research and Innovative Technology Administration's Bureau of Transportation Statistics, and Federal Highway Administration. The United States Metropolitan Planning Organization database is a geographic database of Metropolitan Planning Organization political boundaries. Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).

183. USA (Non-Attainment Areas: Carbon Monoxide, 2004)

ICF Consulting and Bureau of Transportation Statistics (BTS). Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).

184. USA (Non-Attainment Areas: Carbon Monoxide, 2006)

Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).

185. USA (Non-Attainment Areas: Lead, 2004)

Bureau of Transportation Statistics, ICF Consulting, and Bureau of Transportation Statistics (BTS). Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).

186. USA (Non-Attainment Areas: Lead, 2006)

Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).

187. USA (Non-Attainment Areas: Nitrogen Dioxide, 2004)

Bureau of Transportation Statistics and ICF Consulting. Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).

188. USA (Non-Attainment Areas: Nitrogen Dioxide, 2006)

Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).

189. USA (Non-Attainment Areas: Ozone, 2004)

Bureau of Transportation Statistics and ICF Consulting. Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).

190. USA (Non-Attainment Areas: Ozone, 2006)

Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).