“The discussion has started to become not if we have an animal disease outbreak, but when,” explained Greg Ibach, undersecretary for USDA’s marketing and regulatory programs.

Yes, there is the mandatory USDA Animal Disease Traceability (ADT) program. But it only pertains to cattle older than 18 months crossing state lines. Plus, patchwork state regulations can make for inconsistent enforcement of the federal regulation. 

No, a  traceability system  does nothing to prevent disease. However, a  robust traceability system  could pave the way for containment and control of foot-and-mouth disease, or a similar one, at an exponentially faster rate than is currently possible.