Products and materials regulated under this Standard are classified as allowed, restricted, or prohibited.

Any product or material containing more than one ingredient is classified according to the status of the most restricted ingredient.

Products and materials not specifically mentioned in the lists shall nonetheless be prohibited if they contain the following:

1. Synthetic, synthetically compounded and synthetically simulated materials, unless specifically permitted;
2. Materials which degrade the health of organisms necessary for healthy soil;
3. Materials which cause negative acute or chronic health effects;
4. Materials which are persistent in the environment and are damaging to the environment, or break down into compounds which are persistent and damaging;
5. Sewage sludge in any form
6. Genetically engineered organisms and their products.
7. Ionizing radiation and forms of irradiation on products destined for use as pest control, elimination of pathogens and sanitation.

Allowed: means Certified Organic Land Care Professionals may use these products in Organic Land Care within the restrictions indicated for each product.

Prohibited: means Certified Organic Land Care Professionals must not use these products under any circumstances in Organic Land Care.