Prepared in the supplied September 2026 research pack. This draft has not been reverified in this pass. Rules, prices, company status, and numerical claims may need correction.
Keep these questions close.
- Read this as a draft from the supplied research pack.
- Follow the linked sources and check current rules before acting.
- Ask how the evidence fits your region, crop, and scale.
A bag or jug that says "organic" on the front is a marketing claim. Whether you can use it on certified organic ground is a separate question, and getting it wrong can cost you more than the price of the product.
California learned this the hard way. Over roughly a decade, regulators and federal prosecutors pursued cases in which "organic" liquid fertilizers were found to contain synthetic nitrogen. Farmers who bought those products in good faith were applying prohibited materials without knowing it.
This post explains the three input-review systems US organic farmers rely on most, what the fraud cases teach, and a practical routine for checking every input before it goes on your fields.
Key takeaways
- Your certifier, not a label or a listing service, makes the final decision on whether an input is allowed on your operation.
- OMRI is a nonprofit that reviews products against USDA organic standards and publishes the OMRI Products List. Listing is voluntary.
- The Washington State Department of Agriculture runs its own organic input registration program with a Brand Name Materials List, widely accepted as an alternative to OMRI.
- California requires fertilizing materials sold for organic use to be registered with CDFA as Organic Input Materials (OIM), a program that includes inspection.
- CDFA fined one company $1.89 million in 2022 for adulterated and mislabeled organic fertilizer, and federal cases in 2012 involved synthetic fertilizer sold to organic farms.
- A liquid "organic" fertilizer with unusually high nitrogen deserves extra scrutiny.
Why input verification matters: lessons from the fraud cases
The federal cases of 2012
In November 2012 the US Attorney for the Northern District of California announced that the former president of an organic fertilizer company had been sentenced for selling synthetic fertilizer to organic farms. CDFA reposted the announcement on its Planting Seeds blog. The same year, the FBI's Sacramento office announced that the owner of a Kern County fertilizer business had been sentenced for organic fertilizer fraud, and Food Safety News reported a guilty plea by an "organic" fertilizer maker in March 2012.
Trade press has also covered this history. AgWeb's long-form account, "Organic Implosion: How Two Grifters Cooked $50M In Fake Fertilizer and Rocked Agriculture", and an Ag Professional report headlined "Organic fertilizer fraud nets four 78-month terms" describe large cases, though we have not confirmed which specific cases those articles cover.
The 2022 CDFA penalty
On June 28, 2022, CDFA announced a $1.89 million penalty against Agro Research International LLC for adulteration and mislabeling of organic fertilizer. A judge later upheld the penalty.
The common thread
The pattern reported across these cases is that liquid "organic" fertilizers with suspiciously high nitrogen were spiked with synthetic nitrogen, such as ammonium sulfate or urea. Afterward, California created its Organic Input Material program, which requires registration and inspection of organic input fertilizers.
The lesson for farmers is simple: a product that performs like a synthetic fertilizer, at an organic price, may be one.
The three main review systems compared
| OMRI | WSDA | CDFA OIM | |
|---|---|---|---|
| Who runs it | Nonprofit Organic Materials Review Institute | Washington State Department of Agriculture | California Department of Food and Agriculture |
| What it does | Reviews products against NOP standards; publishes the OMRI Products List | Organic input material registration; publishes a Brand Name Materials List | Registers fertilizing materials sold for organic use in California; includes inspection |
| Voluntary or required? | Voluntary for companies | State registration program; check WSDA for requirements | Required for organic fertilizing materials sold in California |
| How it's funded | Company fees scaled to annual gross sales, with separate initial-review and renewal fees | Not covered in our research | Not covered in our research |
| Where to check | OMRI Products List | WSDA Brand Name Materials List | CDFA registered OIM product lists |
| Final say on your farm? | No, your certifier decides | No, your certifier decides | No, your certifier decides |
OMRI
OMRI reviews input products against National Organic Program standards and publishes a list of products that pass. Companies pay for the review; OMRI's 2025 fee table and review cost page describe fees scaled to annual gross sales. Because listing is voluntary, a product that isn't OMRI Listed isn't automatically prohibited. It just means you and your certifier need to review it another way.
WSDA
Washington's Organic Input Material registration program and its Brand Name Materials List are widely accepted as an alternative to OMRI. Ask your certifier which listings it accepts.
CDFA OIM
California's Organic Input Material program requires any fertilizing material sold for organic use in the state to be registered, and it includes inspection. CDFA posts lists of registered products; one version was updated October 16, 2024. Check the CDFA page for the most recent list, since registrations change.
Where your certifier fits in
Listings help, but they don't replace your certifier. Your organic system plan should list the inputs you intend to use, and your certifier approves them for your operation. Ask before you buy, not after you spread.
The rules themselves are also moving. As of a January 2026 NOP update to the National Organic Standards Board, a National List proposed rule had been drafted and was under review, and an inerts proposed rule was at the workplan stage. Each substance on the National List is reviewed every five years. We don't list specific National List changes here; check with your certifier for current status as of September 2026.
Enforcement has also tightened across the organic supply chain. The Strengthening Organic Enforcement rule, published January 19, 2023, took full effect March 19, 2024. If you buy certified organic seed, feed or transplants, you can also check USDA's list of fraudulent organic certificates and the Organic Integrity Database of certified operations.
Red flags for fertilizers and amendments
Typical extension tables give a sense of what is normal. These ranges come from standard references and should be checked against your extension office's current figures:
| Material | Typical nitrogen content |
|---|---|
| Feather meal | About 12–13% N |
| Blood meal | About 12–13% N |
| Fish emulsion or hydrolysate | About 2–5% N (liquid) |
| Pelleted poultry litter or manure | About 3–5% N (variable) |
| Seed meals (soy, canola, alfalfa) | 2–7% N |
| Compost | About 1–2% N |
Watch for:
- A liquid "organic" fertilizer with a nitrogen analysis well above what similar products carry
- Very fast, synthetic-like crop response from a product sold as slow or organic
- "Organic" or "natural" on the label with no OMRI, WSDA or CDFA OIM status, and no documentation for your certifier
- A listing that doesn't match the exact product name, formulation or manufacturer on your invoice
- A listing that has expired or been removed
- A supplier who can't or won't provide an ingredient statement for your certifier
- Private-label or repackaged products with no clear link to the listed original
An input verification routine
Before you buy:
- Check the exact product name and manufacturer on the OMRI Products List, WSDA Brand Name Materials List or CDFA OIM list.
- Save a screenshot or PDF of the listing with the date.
- Ask your certifier to approve the product for your organic system plan.
- Compare the guaranteed analysis with typical ranges for that material type.
When it arrives:
- Match the label, lot and product name to the listing and your invoice.
- Keep labels, invoices and listing records together.
Every season:
- Recheck listings, since status can change.
- Update your organic system plan when you add or change inputs.
- Report anything suspicious to your certifier and, in California, to CDFA.
What to do next
- Make your certifier your first call for any new input.
- Verify by exact product name on OMRI, WSDA or CDFA lists, and keep dated records.
- Question unusually high nitrogen in liquid organic fertilizers.
- Build an input file with labels, invoices and listing printouts for inspections.
- Recheck every season as listings and the National List change.
- Ask your extension office for current nutrient ranges and fertilizer calculators.
Sources
- Former President Of Organic Fertilizer Company Sentenced — US Department of Justice, N.D. California (November 8, 2012)
- President of Organic Fertilizer Company Sentenced to Federal Prison for Selling Synthetic Fertilizer to Organic Farms (repost) — CDFA Planting Seeds Blog (November 9, 2012)
- Owner of Kern County Fertilizer Business Sentenced for Organic Fertilizer Fraud — FBI Sacramento (2012)
- 'Organic' Fertilizer Maker Pleads Guilty to Fraud — Food Safety News (March 2012)
- Organic Implosion: How Two Grifters Cooked $50M In Fake Fertilizer and Rocked Agriculture — AgWeb (date not confirmed)
- Organic fertilizer fraud nets four 78-month terms — Ag Professional (date not confirmed)
- CDFA issues $1.89 million penalty to Agro Research International LLC for adulteration and mislabeling of organic fertilizer — CDFA Inspection Services Blog (June 28, 2022)
- Judge Upholds $1.89M Penalty for Adulteration and Mislabeling of Organic Fertilizer — Morning Ag Clips (date not confirmed)
- Organic Input Material Program — CDFA (accessed September 2026)
- Registered Organic Input Material Products (PDF) — CDFA (updated October 16, 2024)
- 2025 Fee Table (PDF) — OMRI (2025)
- Review Cost — OMRI (accessed September 2026)
- NOP Update for the NOSB (PDF) — USDA AMS (January 2026)
- National Organic Program; Strengthening Organic Enforcement — Federal Register (January 19, 2023)
- Fraudulent Organic Certificates — USDA AMS (accessed September 2026)
- Organic Integrity Database — USDA AMS (accessed September 2026)
Sources & context
The source links in the draft above are retained as supplied. They are leads for review, not a claim of current verification.
Site publication date: unset. Research and source dates are kept separate. Confirm material use with your certifier and local extension service.
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