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Federal
Mandatory Class 1 Federal Areas Download Package 12 recent views
U.S. Environmental Protection Agency —
This downloadable package contains the following layers: Mandatory Class 1 Federal Area polygons in the United States. Included in this package are a file... -
Federal
US EPA Nonattainment Areas and Designations - Download Package
U.S. Environmental Protection Agency —
This downloadable data package contains the following state level layers: Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010... -
Federal
Mandatory Class 1 Federal Areas Web Service
U.S. Environmental Protection Agency —
This web service contains the following layers: Mandatory Class 1 Federal Area polygons and Mandatory Class 1 Federal Area labels in the United States. The polygon...