Background information about the Secure Food Supply plans can be found on the following websites:
United States Department of Agriculture (USDA) Overview of the Secure Food Supply Plans
https://www.aphis.usda.gov/media/document/2081/file
Iowa State University Center for Food Security and Public Health
https://www.cfsph.iastate.edu/Secure-Food-Supply/
University of Minnesota Secure Food Systems
https://securefoodsystems.umn.edu