Renewable Fuel Programs Compliance
Accredited Verification for your Renewable Fuels Pathways
EcoCira provides verification and validation audit services for California, Washington and Oregon Low Carbon Fuel Standard programs. We perform accredited verification for Annual Fuel Pathway Reports, Transaction Reports, new Pathway Validations, and 45Z Clean Fuel Tax Credit Certifications.
We conduct audits that are rigorous and aligned with requirements — no more, no less. We surface issues early, keep timelines on track, and provide clear communication throughout the process.
Looking for a partner to help you comply? Check out Compliance Program Development Page.
US Renewable Fuel Programs

California Low Carbon Fuel Standard

Oregon Clean Fuels Program

Washington Clean Fuel Standard

New Mexico Clean Transportation Fuel Program
How EcoCira Can Help

With over 45 years of experience in the fuel market, EcoCira specialties span the value chain. As an approved verification body under California’s Low Carbon Fuel Standard (LCFS), we provide independent, accredited reviews of fuel pathway applications, annual reports, and lifecycle emissions data.
Our team ensures that every submission meets CARB’s rigorous standards for accuracy, transparency, and compliance. By combining industry knowledge with regulatory accreditation, we give clients the confidence and credibility they need to successfully navigate the LCFS framework.
Assurance Review Process
- 1. Planning &
Scope - 2. Data
Collection - 3. Testing &
Verification - 4. Site
Visit - 5. Findings &
Correction - 6. Final
Opinion - New Tab
Planning & Scope

The assurance reviewer meets with your team to understand operations, reporting boundaries, methodologies, and key data sources.
- Kick-off meeting to review boundaries, sources, and reporting methodologies
- Identification of high emission pathway types
- Agreement on timelines, deliverables, and sampling approach
Data Collection

Expect requests for activity data, emission factors, calculations, internal controls, and prior-year reports.
- Assurance provider issues a document request list (activity data, meters, invoices, utility bills, models, etc.)
- Collection of calculation workbooks, emission factors, and supporting documentation
- Review of organizational controls, roles, and data management systems
Testing & Verification

Auditor teams trace reported values back to source documents, sample high-risk or high-emission categories, and check reasonableness.
- Recalculation of emissions data for selected high-risk categories
- Evaluation of internal controls for fuel transactions
- Interviews with personnel involved in data collection and reporting
Site Visit

Assurance reviewers may make site visits, interviewing staff responsible for data entry, metering, procurement, and sustainability reporting.
- On-site meter checks, equipment verification, or activity data confirmation
- Walkthroughs of data systems and operational processes
- Live data pulls from database systems
- Photographic or logged evidence collection using CARB-style protocols
Findings & Correction

Assurance reviewers provide issues, discrepancies, and required corrections before issuing an assurance opinion.
- Issuance of preliminary log of issues to fix
- Opportunities to correct or clarify data before the final opinion
- Materiality thresholds applied depending on assurance level
Final Opinion

A formal report is issued stating whether disclosures are free from material misstatement under the chosen standard.
- Summary of testing performed and confidence level
- Documentation suitable for public reporting
