This is exactly what a small amendment in the proposed new farm bill guarantees.

The fine printH.R. 5973: Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations Act, 2013 is legislation that will form agricultural and food policy in the U.S. if passed. According to American Farmland Trust:

"The farm bill is a package of federal legislation enacted every five to seven years to set the general direction for America's farm and food policy.