# Updated 45Z GREET model narrows feedstock hierarchy as supply constraints move into focus - Fastmarkets

> The US Department of Energy released an updated 45ZCF-GREET model for the revised 45Z clean fuel credit on June 12. The update removes indirect land-use change emissions from 2026 and restricts eligible feedstocks to US, Canada and Mexico. Soybean oil and canola credits rose, while waste-based feedstocks remain highly valued.

- Date: 2026-06-23 · published 2026-06-23T12:00:00.000Z
- Category: policy · region US · magnitude medium
- Page: https://feedsoft.ai/events/18894-updated-45z-greet-model-narrows-feedstock-hierarchy-as-supply-constraints-move
- Commodities: [Soybean Oil](https://feedsoft.ai/c/SBO.md), [Canola Meal](https://feedsoft.ai/c/CANMEAL.md)

## Why it matters

Higher 45Z credits for soybean oil and canola improve crop-based biofuel economics, supporting soyoil and canola demand relative to waste feedstocks.

## Read by commodity

- SBO: bullish ▲
- CANMEAL: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| SBO | 2026-06-16 | [The 45Z reckoning: what the finalization of US biofuel policy means for every feedstock in the supply chain - Fastmarkets](https://feedsoft.ai/events/15014-the-45z-reckoning-what-the-finalization-of-us-biofuel-policy-means-for-every.md) | -1.5% | +5.5% |
| SBO | 2022-04-26 | [Biofuel feedstocks supply and demand - two key challenges - Fastmarkets](https://feedsoft.ai/events/15399-biofuel-feedstocks-supply-and-demand-two-key-challenges-fastmarkets.md) | -2.4% | -4.2% |
| SBO | 2026-08-28 | [Grain Journal \| Updated 45Z Model Could Boost Soybean Demand and…](https://feedsoft.ai/events/17983-grain-journal-updated-45z-model-could-boost-soybean-demand-and.md) | +6.9% | +0.6% |
| SBO | 2026-10-09 | [CoBank: US needs feedstock imports to meet RVO \| World Grain](https://feedsoft.ai/events/14987-cobank-us-needs-feedstock-imports-to-meet-rvo-world-grain.md) | -0.2% | +1.5% |
| SBO | 2026-06-01 | [The low-carbon feedstock squeeze: why UCO, tallow and animal fats are becoming the most fought-over commodities in US biofuels  - Fastmarkets](https://feedsoft.ai/events/18931-the-low-carbon-feedstock-squeeze-why-uco-tallow-and-animal-fats-are-becoming.md) | -2.0% | -6.1% |

## Sources

- fastmarkets.com: https://www.fastmarkets.com/insights/updated-45z-greet-model-narrows-feedstock-hierarchy-as-supply-constraints-move-into-focus/

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.