A system for certification of animals, owners, attendants, venues, enterprises, and events relies on identification, traceability, and evaluation against selected criteria. Data maintained during agricultural production includes production, raising, selling, holding, treating, harvesting products like milk or wool, slaughter, transfer of ownership or venue, and veterinary and pharmacological interventions, whether medicaments, preventives, protocols, treatments, or inspections administered. Record keeping and selection, analysis, and notifications are according to criteria (particularly risks, exposures, or both) specified by any entity requesting or requiring a certification of a condition or lack thereof. Warnings may be triggered and distributed timely. Mobile units avoid traditional deficiencies in data, analysis, risk assessment, and timeliness.