Source:  NC Pork Council, 6/19/09

In January of 2009, The Institute of Agriculture & Natural Resources in the Department of Agricultural Economics at the University of Nebraska released a paper outlining the variations of environmental regulation stringency among the top ten U.S. hog producing states.
 
North Carolina was found to have the most stringent regulations along with Illinois.
 
To see the complete paper, please visit the following link: www.agecon.unl.edu/Cornhuskereconomics/2009cornhusker/1-28-09.pdf