About OMRI

The Organic Materials Review Institute (OMRI) is a non-profit organization that provides independent reviews of products intended for use in certified organic production and processing. OMRI Listed® products are allowed for use under the USDA National Organic Program.

OMRI Product Types

1. Crop Fertilizers and Soil Amendments

CategoryExamples
Organic FertilizersAnimal-Based: Bone meal, blood meal, feather meal, fish meal
Plant-Based: Alfalfa meal, soybean meal, cottonseed meal, kelp meal
Mineral AmendmentsRock Minerals: Rock phosphate, basalt rock dust, azomite
Micronutrients: Boron, zinc sulfate, copper sulfate, manganese sulfate
Soil ConditionersBiostimulants: Humic acids, fulvic acids, seaweed extracts
Organic Matter Enhancers: Biochar, composted bark, peat moss
Liquid FertilizersFish Emulsions: Liquid fish fertilizers
Molasses-Based Products: Cane molasses, beet molasses
Plant Extracts: Liquid kelp, aloe vera extracts

2. Crop Pest, Weed, and Disease Control

CategoryExamples
BiopesticidesMicrobial Pesticides: Bacillus subtilis, Trichoderma species
Entomopathogenic Nematodes: Steinernema, Heterorhabditis
Botanical InsecticidesPlant Oils: Neem oil, clove oil, rosemary oil, thyme oil
Extracts: Garlic extract, cinnamon oil, pepper extracts
Organic HerbicidesAcid-Based Solutions: Vinegar (acetic acid), citric acid
Oils: Lemongrass oil, d-limonene, pine oil
FungicidesSulfur Products: Wettable sulfur, elemental sulfur
Copper-Based Products: Copper hydroxide, copper sulfate
Biological Fungicides: Streptomyces lydicus, Gliocladium spp.

3. Livestock Inputs

CategoryExamples
Feed SupplementsMineral Blocks: Salt licks with trace minerals
Vitamins: Vitamin E supplements, kelp meal
Probiotics: Lactobacillus, Bifidobacterium strains
Health Care ProductsHomeopathic Remedies: Arnica, calendula
Herbal Treatments: Echinacea, garlic tinctures, aloe vera gel
Natural Dewormers: Diatomaceous earth, herbal blends
Sanitation ProductsCleaners: Natural detergents, citrus-based cleaners
Disinfectants: Hydrogen peroxide, iodine solutions, alcohol wipes

4. Processing Aids and Ingredients

CategoryExamples
Food AdditivesNatural Preservatives: Tocopherols (Vitamin E), ascorbic acid (Vitamin C)
Thickeners: Guar gum, agar-agar, xanthan gum
Emulsifiers: Lecithin, plant-derived mono- and diglycerides
Cleaning AgentsBiodegradable Soaps: Castile soap, saponified coconut oil
Alcohols: Ethanol, isopropanol
Enzymatic Cleaners: Protease, amylase-based cleaners
Packaging MaterialsBiodegradable Films: Cellulose-based wraps
Compostable Containers: PLA (polylactic acid) materials
Recyclable Packaging: Glass jars, metal cans

About CDFA OIM

The California Department of Food and Agriculture Organic Input Material (CDFA OIM) program registers fertilizing materials for use in organic crop and food production in California. Products registered under CDFA OIM comply with the USDA National Organic Program standards.

CDFA OIM Product Types

1. Commercial Fertilizer

CategoryExamples
Macronutrient SourcesNitrogen Fertilizers: Feather meal, blood meal, soybean meal
Phosphorus Fertilizers: Bone meal, fish bone meal, rock phosphate
Potassium Fertilizers: Sulfate of potash, kelp meal, wood ash
Liquid FertilizersFish-Based Fertilizers: Hydrolyzed fish proteins
Plant Extracts: Liquid seaweed, molasses solutions
Amino Acid-Based: Plant-derived amino acid concentrates

2. Agricultural Mineral

CategoryExamples
Mineral SourcesGypsum: Calcium sulfate dihydrate
Dolomite Lime: Calcium magnesium carbonate
Elemental Sulfur: For soil pH adjustment
Trace MineralsManganese Sulfate, Zinc Oxide, Iron Chelates
Silicon Sources: Silicate minerals for plant strength

3. Auxiliary Soil and Plant Substance

CategoryExamples
Growth EnhancersSeaweed Extracts: Ascophyllum nodosum extracts
Plant Hormones: Cytokinins, gibberellins from seaweed
Rooting AgentsMycorrhizal Fungi: Glomus intraradices, Glomus mosseae
Beneficial Bacteria: Rhizobium, Azospirillum, Bacillus species
Stress RelieversAntioxidants: Vitamin C formulations
Anti-Transpirants: Natural waxes, pine oil derivatives
Silicon Supplements: For drought and heat stress tolerance

4. Specialty Fertilizer

CategoryExamples
Micronutrient BlendsChelated Micronutrients: EDTA-chelated iron, zinc, manganese
Custom Blends: Formulated for specific crops
Slow-Release FertilizersOrganic Coated Fertilizers: Sulfur-coated urea (organic compliant)
Pelletized Manures: For gradual nutrient release
Foliar SpraysLiquid Seaweed, Fish Fertilizer Sprays, Micronutrient Solutions
Organic Acids: Fulvic acid sprays

5. Soil Amendment

CategoryExamples
Organic Matter SourcesComposted Materials: Yard waste compost, mushroom compost
Green Manures: Cover crop residues, leguminous plants
Soil ConditionersWorm Castings, Peat Humus, Coconut Coir
pH AdjustersElemental Sulfur: For lowering soil pH
Limestone: For raising soil pH
Wood Ash: As a liming agent and potassium source

About WSDA

The Washington State Department of Agriculture (WSDA) Organic Program is accredited as a certification agent by the USDA National Organic Program. WSDA Organic Certification covers producers, processors, and handlers of organic products in Washington State.

WSDA Product Types

1. Crop Production Aid

CategoryExamples
Plant Growth RegulatorsSeaweed Extracts, Humic Acid Products
Amino Acid Formulations: For enhanced growth
AdjuvantsNatural Surfactants: Yucca extract, saponin-based products
Spreaders and Stickers: Lecithin, plant-based oils
Drift Control Agents: Natural polymers

2. Disease and Pest Control

CategoryExamples
Biological ControlsBeneficial Insects: Ladybugs, lacewings, predatory mites
Microbial Pesticides: Bacillus subtilis, Paenibacillus polymyxa
Organic PesticidesBotanical Insecticides: Neem oil, pyrethrins
Mineral-Based: Diatomaceous earth, kaolin clay
Soap-Based Insecticides: Potassium salts of fatty acids

3. Fertilizer and Soil Amendment

CategoryExamples
Organic FertilizersManures: Composted chicken manure, cow manure
Plant-Based Fertilizers: Cottonseed meal, corn gluten meal
Fish Products: Fish meal, crab shell meal
Soil AmendmentsBiochar, Vermiculite, Perlite
Microbial Inoculants: Soil probiotics
Compost ProductsMunicipal Compost, Green Waste Compost
Mushroom Compost: Spent substrate

4. Livestock Feed

CategoryExamples
Organic GrainsWhole Grains: Organic wheat, barley, rye
Processed Feeds: Pelleted rations, cracked grains
ForagesHay: Alfalfa hay, timothy hay
Silage: Corn silage, grass silage
SupplementsMineral Mixes, Vitamin Premixes tailored for livestock

5. Livestock Health Care

CategoryExamples
Natural RemediesHerbal Tinctures: Oregano oil, thyme extract
Essential Oils: Tea tree oil, eucalyptus oil
Homeopathic Treatments: Arnica, belladonna
Approved MedicationsElectrolytes, Probiotics, Vaccines
Wound Care Products: Natural salves, herbal ointments

6. Livestock Production Aid

CategoryExamples
Bedding MaterialsOrganic Straw, Wood Shavings, Peat Moss
Recycled Paper Bedding
Milking Equipment CleanersCitric Acid Solutions, Sodium Percarbonate
Alkaline Cleaners: Approved for organic use

7. Processing and Handling

CategoryExamples
Organic IngredientsSweeteners: Organic cane sugar, agave nectar, maple syrup
Oils and Fats: Organic olive oil, coconut oil, cocoa butter
Flours and Grains: Organic wheat flour, quinoa, rice
Dairy Ingredients: Organic milk powder, whey protein
Processing AidsEnzymes: Amylase, protease
Cultures: Yogurt cultures, cheese starters
Clarifying Agents: Bentonite clay, activated charcoal

8. Processing Pest Control

CategoryExamples
Non-Toxic TrapsInsect Traps: Pheromone traps, light traps
Rodent Control: Live traps, mechanical traps
Mechanical ControlsExclusion Devices, Air Curtains
Ultrasonic Repellents

9. Processing Sanitizer and Cleaner

CategoryExamples
Approved SanitizersPeracetic Acid, Hydrogen Peroxide, Chlorine Dioxide (within allowable limits)
Cleaning AgentsAlcohol-Based Cleaners, Biodegradable Detergents
Steam Cleaning Equipment