email to nass@nass.usda.gov , or call the Agricultural 
Statistics hotline at 800-727-9540. 
Custom-designed tabulations may be developed 
when the data are not published elsewhere. NASS 
will develop these tabulations to individual user 
specifications on a cost-reimbursable basis and then 
share them with the public. Before requesting a 
custom tabulation, spend time with Quick Stats 
(http://www.nass.usda.gov/Quick_Stats), NASS’s 
online database that allows data users to build 
customized queries. 
All NASS publications and custom tabulations are 
subject to a thorough disclosure review prior to 
release to prevent the disclosure of any individual 
respondent data. Requests for special tabulations can 
be submitted online from the NASS home page 
(www.nass.usda. gov) or to the NASS DataLab by 
mail or by email: 
USDA 
National Agricultural Statistics Service (NASS) 
Room 6061 - Mail Stop 2017 
1400 Independence Avenue, S.W. 
Washington, D.C. 20250 
or 
Datalab@nass.usda.gov 
ABBREVIATIONS AND SYMBOLS 
The following abbreviations and symbols are used 
throughout the tables: 
Represents zero. 
(D) Withheld to avoid disclosing data for 
individual farms. 
(Z) Less than half of the unit shown. 
(NA) Not available. 
(X) Not applicable. 
Cwt Hundredweight. 
2012 Census of Agriculture Introduction IX 
USDA, National Agricultural Statistics Service 
