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2010. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the sulfur diox... United States. Bureau of Transportation Statistics.
2003. California Air Resources Board. Planning and Technical Support Division and Stephen P. Teale Data Center (Calif.). This polygon shapefile contains federal one-hour ozone area designations and their classifications as per 40CFR81.305, part of the National Ambient... California. Air Resources Board.
2012. California. Office of Statewide Health Planning and Development and County of San Mateo Information Services Department. This point shapefile represents the locations of all outpatient healthcare facilities in San Mateo County licensed by the State of California, Depa... County of San Mateo Information Services Department.
2023. The county parcel layer was derived over many years from the cadastral parcel maps prepared by the Assessor's Office. The complete and contiguous p... Tuolumne County (Calif.). Geographic Information Systems.
2011. United States. Environmental Protection Agency. Region IX. This polygon shapefile shows designated areas for particulate matter < 10 microns according to the 24-Hour National Ambient Air Quality Standard... California. Air Resources Board.
2013. United States. Environmental Protection Agency. Region IX. This polygon shapefile contains nonattainment areas for particulate matter < 10 microns. Nonattainment areas are geographic areas which have not... United States. Environmental Protection Agency. Region IX.
2011. United States. Environmental Protection Agency. This polygon shapefile identifies areas in the U.S. where air pollution levels have not met the 2006 National Ambient Air Quality Standards (NAAQS)... California. Air Resources Board.
2014. California. Office of Statewide Health Planning and Development. This polygon shapefile contains primary health care professional shortage areas (HPSAs) in California. The federal HPSA designation identifies area... California. Office of Statewide Health Planning and Development.
2015. O'Neill, Michael and California. Office of Statewide Health Planning and Development. This polygon shapefile contains primary health care professional shortage areas (HPSAs) in California. On January 26, 2004, the California Healthca... California. Office of Statewide Health Planning and Development.
2005. California. Office of Statewide Health Planning and Development. This polygon shapefile contains registered nursing shortage areas (RNSAs) in California for 2005. The Commission uses the RNSA as only one of many ... California. Office of Statewide Health Planning and Development.