The certification mark as used by authorized persons certifies that the organic agricultural products or applications have been grown and processed in accordance with guidelines set out in the attached "guidelines and standards for the grower for demeter biodynamic certification and Organic-in-Transition to Biodynamic." These guidelines set high standards for certifying organic products, and cover matters such as building natural soil fertility; using natural methods to increase crop resistance to fungal, bacterial and pest attacks; raising livestock; and storage and processing. The guidelines prohibit use of chemically synthesized fertilizers, pesticides, herbicides, fumigants, hormones, antibiotics, growth regulators or genetically engineered organisms