Food defense is now an integral element in almost all third-party audit schemes, in particular ones from the Global Food Safety Initiative (GFSI).
The International Organization for Standardization (ISO) includes food defense, biovigilance and bioterrorism in its technical standard TS 22002-1. This standard evolved from the PAS (Publicly Available Specification) 220 document, developed by the British Standards Institution to augment the ISO 22000 food safety standard.