Nitrogen Credits — Frequently Asked Questions
What are nitrogen credits?
Nitrogen credits represent verified reductions of nitrogen pollution entering waterways — primarily from agricultural runoff, fertilizer over-application, and livestock waste. Companies and municipalities that exceed permitted nitrogen discharge levels can purchase credits from projects that reduce equivalent amounts of nitrogen upstream.
The nitrogen credit market is valued at $80 billion with an 18% annual growth rate, driven by tightening water quality regulations.
What causes nitrogen pollution?
Nitrogen enters waterways through:
- Agricultural runoff — excess fertilizer and animal waste washing off fields
- Fertilizer over-application — nitrogen not absorbed by crops leaching into groundwater
- Atmospheric deposition — nitrogen oxides from combustion settling into water bodies
Excess nitrogen causes eutrophication — algal blooms that deplete oxygen and create dead zones, damaging fisheries and drinking water sources.
What types of nitrogen credits does NCRB support?
| Sub-type | Description |
|---|---|
| Agricultural Runoff Reduction | Verified reductions from precision farming, buffer strips, and drainage management |
| Fertilizer Optimisation | Agronomic plans reducing over-application |
| Cover Crop Implementation | Nitrogen uptake and retention by off-season crops |
| Wetland Restoration | Natural nitrogen filtration through restored wetlands |
Which standards and programmes are supported?
| Programme | Notes |
|---|---|
| Nutrient Tracking Tool (NTT) | USDA-endorsed modelling tool for nitrogen and phosphorus reduction |
| USDA Conservation Programmes | EQIP, CSP, and other conservation practice standards |
| State-Level Programmes | Virginia, Maryland, Pennsylvania nutrient trading programmes |
| Chesapeake Bay Program | The most active nutrient trading watershed programme in the US |
What is a "delivery ratio" and why does it matter?
Not all nitrogen reduced at the source reaches the receiving water body — some is naturally processed or diluted en route. The delivery ratio (0–1.0) measures what fraction of the upstream nitrogen reduction actually reaches the regulated water body.
A higher delivery ratio means the credit has greater verified water quality impact.
| Delivery Ratio | Credit Value |
|---|---|
| High (0.8–1.0) | $20–$50 / kg N |
| Medium (0.5–0.8) | $10–$30 / kg N |
| Standard (0.3–0.5) | $5–$15 / kg N |
| Low (< 0.3) | Trading ratio applied (2:1 for non-point to point source) |
What are the minimum requirements to tokenize a nitrogen credit?
- State programme certification for the applicable watershed
- Third-party verification of the nitrogen reduction
- Documented delivery ratio calculation
- Compliance with a 2:1 trading ratio where non-point sources offset point sources
- Token issued as
NC-NITROGEN-{ID}(ERC-7943 uRWA)
How is quality rated?
Nitrogen credits receive a programmatic quality score (0–100) across six weighted dimensions — the same framework used across all NCRB asset classes (Technical Quality 25%, Additionality 20%, Permanence 20%, Certification Level 15%, Social Impact 12%, Vintage/Condition 8%).
| Band | Score |
|---|---|
| AAA | 85–100 |
| AA | 75–84 |
| A | 65–74 |
| BBB | 50–64 |
| Not Eligible | < 50 |
How is token revenue distributed?
| Recipient | Share |
|---|---|
| Asset Owner | 70% |
| Registry Partner | 10% |
| NCRB Platform | 10% |
| Third Party (aggregator / referrer) | 10% |
What fees apply?
- Trading fee: 2.5% per transaction
- AUM fee: 1.5% annually
- BaaS licensing: $50,000–$200,000 for registry partners