Users of our Cropland Data Layer (CDL) and associated
raster and vector data files are solely responsible for interpretations
made from these products. The CDL is provided "as is". USDA/NASS
does not warrant results you may obtain by using the Cropland Data Layer.
Feel free to contact our staff at (HQ_RDD_GIB@nass.usda.gov
if technical questions arise in the use of our Cropland Data Layer.
NASS does provide considerable metadata on the CDL in the Frequently Anticipated
Questions (FAQ's) section on this CDL website, and on the ordered DVD's.
Also, there are substantial statistical performance measures by State on the AWiFS data categorization accuracies for
each DVD for each year.