The animals must be fed from crops that are certified organic. Among other regulations, the land cannot have been sprayed with synthetic pesticides, herbicides or chemical fertilizers for a minimum of three years.
Genetically Modified Organisms (GMO's) are strictly forbidden.
Antibiotics and growth-hormones are strictly banned.
Animal by-products are strictly banned in the animals feed.
A thorough audit trail is required to trace all certified organic products to the farm of origin.
Soil and water quality must be monitored at all times to ensure contamination has not taken place.
Organic processors and producers must maintain and update an organic processing and handling plan.