Chemical Facility Anti-Terrorism Standards and Agricultural Production Facilities [open pdf - 151KB]
"Whether used as fertilizers that give plants much needed nutrients or as pesticides that protect crops from pests, chemicals are part of everyday business in America's agricultural facilities. When used properly, chemicals allow plants to thrive at nurseries and other agricultural facilities and help farmers produce an abundant supply of food and biofuel for the nation and the world. However, in the wrong hands, some of the same chemicals - such as ammonium nitrate - can be used to do great harm. To protect the nation from the exploitation of hazardous chemicals, Congress authorized the Department of Homeland Security (DHS) to create the Chemical Facility Anti-Terrorism Standards (CFATS) program (6 CFR Part 27) in order to identify and regulate high-risk chemical facilities to ensure they have security measures in place to reduce the risk of a terrorist attack associated with certain chemicals."
Department of Homeland Security: https://www.dhs.gov/