A defensible emissions rate
Modeled in 45ZCF-GREET on your actual operating data, for each facility and production period.
45Z / Clean Fuel Production Credit
45Z services for your next credit transaction.
Bring your operating data and emissions-rate evidence together. Choose pathway reporting, independent due diligence, or certification to match the stage of your transaction.
The starting point
What a producer needs to transact on 45Z credits
Evidence that traces to the meter
Every material model input mapped to a meter record, gas analysis, or operating log.
Assurance your counterparty accepts
Buyers, insurers, and sponsors want an independent party standing behind the rate.
All of it on the timeline
Without pulling your operations team off the plant for weeks of data requests.
45Z / Clean Fuel Production Credit
Three services. Three distinct jobs.
A defensible emissions rate starts with your actual operating data. Rimba helps prepare the pathway, test the reported rate, or provide a signed opinion for your 45Z transaction.
Discuss your 45Z needsOperating data.
Traceable evidence.
Transaction assurance.
Per facility / Per production period
01
Consulting
Pathway reporting
We build it.
A documented RNG pathway modeled in 45ZCF-GREET using your operating data. Material inputs trace back to source records, ready for an auditor or certifier to test.
Your deliverable
An audit-ready pathway and evidence package
What's included in Pathway reporting
You need a documented pathway before verification.
- Pathway report and editable model files, per facility and production period.
- Source-to-input register, monthly reconciliations, and indexed evidence.
- Exception register showing complete, missing, and unresolved items.
Production-period records. No site visit required for this service.
02
Independent verification
Due diligence
We test it.
An independent review of your reported emissions rate and the evidence behind it. Identify gaps, model variances, and transaction risks before your decision deadline.
Your deliverable
A findings-and-observations report with variances
What's included in Due diligence
You need transaction insight, including before full-year data is available.
- Review of pathway fit, facility boundary, inputs, and model integrity.
- Production and sales reconciliations, with recalculation where supported.
- Findings ranked by consequence and evidence quality, with corrective actions.
Partial-year data can support the review. No site visit required for this service.
03
Independent verification
Certification
We attest to it.
A signed opinion on your emissions rate, supported by independent modeling, source-document testing, and a site visit. Built for transactions that need formal assurance.
Your deliverable
A signed certification of your emissions rate
What's included in Certification
Your credit transaction needs assurance for an insurer or counterparty.
- Independent 45ZCF-GREET modeling and source-document testing.
- A site visit and a signed certification with a Certification ID Number.
- Certification signed by a CARB-accredited Lead LCFS Verifier.
Full taxable-year data. Annual renewal with a site visit after prior-period data is submitted.
The pathway reporting workflow
Connect once. We handle the rest.
01
Connect
Securely connect your SCADA and metering data.
02
Gather
Collect biogas, RNG output, energy use, flaring, and losses.
03
Model
Map inputs to 45ZCF-GREET and reconcile monthly.
04
Package
Deliver the report, model files, and indexed evidence.