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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 Fertilizers– Animal-Based: Bone meal, blood meal, feather meal, fish meal
– Plant-Based: Alfalfa meal, soybean meal, cottonseed meal, kelp meal
Mineral Amendments– Rock Minerals: Rock phosphate, basalt rock dust, azomite
– Micronutrients: Boron, zinc sulfate, copper sulfate, manganese sulfate
Soil Conditioners– Biostimulants: Humic acids, fulvic acids, seaweed extracts
– Organic Matter Enhancers: Biochar, composted bark, peat moss
Liquid Fertilizers– Fish 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
Biopesticides– Microbial Pesticides: Bacillus subtilis, Trichoderma species
– Entomopathogenic Nematodes: Steinernema, Heterorhabditis
Botanical Insecticides– Plant Oils: Neem oil, clove oil, rosemary oil, thyme oil
– Extracts: Garlic extract, cinnamon oil, pepper extracts
Organic Herbicides– Acid-Based Solutions: Vinegar (acetic acid), citric acid
– Oils: Lemongrass oil, d-limonene, pine oil
Fungicides– Sulfur Products: Wettable sulfur, elemental sulfur
– Copper-Based Products: Copper hydroxide, copper sulfate
– Biological Fungicides: Streptomyces lydicus, Gliocladium spp.

3. Livestock Inputs

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

4. Processing Aids and Ingredients

CategoryExamples
Food Additives– Natural Preservatives: Tocopherols (Vitamin E), ascorbic acid (Vitamin C)
– Thickeners: Guar gum, agar-agar, xanthan gum
– Emulsifiers: Lecithin, plant-derived mono- and diglycerides
Cleaning Agents– Biodegradable Soaps: Castile soap, saponified coconut oil
– Alcohols: Ethanol, isopropanol
– Enzymatic Cleaners: Protease, amylase-based cleaners
Packaging Materials– Biodegradable 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 Sources– Nitrogen 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 Fertilizers– Fish-Based Fertilizers: Hydrolyzed fish proteins
– Plant Extracts: Liquid seaweed, molasses solutions
– Amino Acid-Based: Plant-derived amino acid concentrates

2. Agricultural Mineral

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

3. Auxiliary Soil and Plant Substance

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

4. Specialty Fertilizer

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

5. Soil Amendment

CategoryExamples
Organic Matter Sources– Composted Materials: Yard waste compost, mushroom compost
– Green Manures: Cover crop residues, leguminous plants
Soil Conditioners– Worm Castings, Peat Humus, Coconut Coir
pH Adjusters– Elemental 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 Regulators– Seaweed Extracts, Humic Acid Products
– Amino Acid Formulations: For enhanced growth
Adjuvants– Natural 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 Controls– Beneficial Insects: Ladybugs, lacewings, predatory mites
– Microbial Pesticides: Bacillus subtilis, Paenibacillus polymyxa
Organic Pesticides– Botanical 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 Fertilizers– Manures: Composted chicken manure, cow manure
– Plant-Based Fertilizers: Cottonseed meal, corn gluten meal
– Fish Products: Fish meal, crab shell meal
Soil Amendments– Biochar, Vermiculite, Perlite
– Microbial Inoculants: Soil probiotics
Compost Products– Municipal Compost, Green Waste Compost
– Mushroom Compost: Spent substrate

4. Livestock Feed

CategoryExamples
Organic Grains– Whole Grains: Organic wheat, barley, rye
– Processed Feeds: Pelleted rations, cracked grains
Forages– Hay: Alfalfa hay, timothy hay
– Silage: Corn silage, grass silage
Supplements– Mineral Mixes, Vitamin Premixes tailored for livestock

5. Livestock Health Care

CategoryExamples
Natural Remedies– Herbal Tinctures: Oregano oil, thyme extract
– Essential Oils: Tea tree oil, eucalyptus oil
– Homeopathic Treatments: Arnica, belladonna
Approved Medications– Electrolytes, Probiotics, Vaccines
– Wound Care Products: Natural salves, herbal ointments

6. Livestock Production Aid

CategoryExamples
Bedding Materials– Organic Straw, Wood Shavings, Peat Moss
– Recycled Paper Bedding
Milking Equipment Cleaners– Citric Acid Solutions, Sodium Percarbonate
– Alkaline Cleaners: Approved for organic use

7. Processing and Handling

CategoryExamples
Organic Ingredients– Sweeteners: 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 Aids– Enzymes: Amylase, protease
– Cultures: Yogurt cultures, cheese starters
– Clarifying Agents: Bentonite clay, activated charcoal

8. Processing Pest Control

CategoryExamples
Non-Toxic Traps– Insect Traps: Pheromone traps, light traps
– Rodent Control: Live traps, mechanical traps
Mechanical Controls– Exclusion Devices, Air Curtains
– Ultrasonic Repellents

9. Processing Sanitizer and Cleaner

CategoryExamples
Approved Sanitizers– Peracetic Acid, Hydrogen Peroxide, Chlorine Dioxide (within allowable limits)
Cleaning Agents– Alcohol-Based Cleaners, Biodegradable Detergents
– Steam Cleaning Equipment
Overview
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