USDA final rule published June 29, 2026 7 CFR Part 2100 technical guidelines in effect 45Z proposed regulations issued by Treasury/IRS FD-CIC is the official USDA calculator Enrollment is not a payment commitment Marketing is not evidence USDA final rule published June 29, 2026 7 CFR Part 2100 technical guidelines in effect 45Z proposed regulations issued by Treasury/IRS FD-CIC is the official USDA calculator Enrollment is not a payment commitment Marketing is not evidence
Final Rule7 CFR Part 2100 · USDA's FD-CIC Calculator · Section 45Z

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FDCIC.com explains USDA's Feedstock Carbon Intensity Calculator (FD-CIC) and final feedstock rule, tracks market claims, compares farmer-facing programs, and evaluates whether low-CI feedstock systems and low CI farm scores are commercially real, technically reproducible, and defensible under audit.

What FDCIC.com does
  • The final rule:What USDA actually requires under 7 CFR Part 2100
  • The official calculator:What the USDA's FD-CIC calculator actually computes, input by input
  • What is optional:What is a program condition, not a federal requirement
  • What is a claim:What a provider asserts, labeled as a provider claim
  • What is reproducible:What can be tested against the official tool
  • What is ready for audit:Whether records, versions, and controls hold up
Official USDA resources

USDA's FD-CIC Final Rule & Official Tools

On June 25, 2026, the U.S. Department of Agriculture released the final rule on Technical Guidelines for the Production of Regenerative Agricultural Biofuel Feedstocks. These official resources establish the guidelines for quantifying, reporting, and verifying the carbon intensity (CI) of regenerative biofuel feedstock commodity crops grown in the United States.

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To get paid farmers need to enroll their farm into our company's technology system.
Inconsistent With Current Rule

USDA's rule specifies that farm producers maintain their own records to be verified through an independent third-party verifier. The burden of data privacy is on the third-party verifiers and other entities in the supply chain participating in this program, including farm producers themselves. Enrollment in a specific company's technology system is not a USDA requirement for payment.

Farmers must deliver the Biofuel Feedstock Report in whatever format the buyer requests.
Inconsistent With Current Rule

USDA understands the need for a standardized Biofuel Feedstock Report and has provided a list of all elements required in the Biofuel Feedstock Report included in 2100.031(e). In order to maintain flexibility in how farm producers create, maintain, and transmit this report, USDA does not specify a specific form or format to allow for a range of ways to meet this requirement including using paper records, farm management software, and digital files. The official FD-CIC tool includes a print option that enables farmers to provide field-level CI scores to buyers in a standard format. While the CI score is only a single part of the Biofuel Feedstock Report, it comes with the farmer's attestation that the farmer is meeting the record-keeping and reporting requirements. This flexibility has been intentionally designed to support farmers down to the use of paper records so that undue burden is not placed on farmers. The intent is to have the market makers who stand to profit from the tax credits create a market that incentivizes farms or offers solutions to help farmers participate if those companies want to achieve the maximum benefit.

Farmers must buy an MRV or farm-management platform to participate.
Program-Specific, Not USDA-Required

A program may require a platform as a condition of its own workflow, but that does not make the platform a universal USDA requirement. The relevant question is what the rule and official calculator require, then what the buyer contract adds.

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All organizations begin as Research Not Yet Completed. Profiles and ratings move forward only when evidence and editorial review support publication.

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Documented Market Themes

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Payment terms not disclosed in enrollment materials
Model version not disclosed or not reconciled to official FD-CIC
Provider consulting and verification roles overlap without safeguards
Nutrient-management claims do not map to an FD-CIC input or accepted record
Additional farm data requested without clear regulatory or commercial purpose
Farmer data, model-training, or attribute ownership rights unclear
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What the Final USDA Feedstock Rule Actually Requires
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The Difference Between USDA FD-CIC and 45ZCF-GREET
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What “Audit-Ready” Should Mean Under the Final Rule
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Why an Enrollment Agreement Is Not a Payment Commitment
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The regulation is the baseline. Marketing is not evidence. Enrollment is not payment. Audit-ready must be demonstrated.