RINSTAR Blog

Auditor 101: What RFS Audits Look For and How to Prepare

RFS audits don’t have to be stressful. From PTDs and BOLs to EMTS reconciliation, this guide breaks down what auditors look for and how to keep your compliance records ready year-round. Discover how RINSTAR’s automated tools simplify audit prep and safeguard your program’s integrity.

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Industry Voices Push for Full SRE Reallocation at EPA’s Supplemental RFS Hearing

The EPA’s October 1, 2025, public hearing brought strong industry consensus in support of 100% reallocation of small refinery exemptions (SREs). Biofuel producers, agricultural groups, and renewable energy advocates stressed that full reallocation is critical to maintaining the integrity of the Renewable Fuel Standard (RFS) and preventing market disruptions. As the EPA reviews comments, RINSTAR continues to help participants navigate compliance confidently with automated RIN tracking, transparent reporting, and streamlined regulatory support.

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RFS Shakeups: SRE Reallocation, 2024 Cellulosic Waiver, and GHG Reporting

The RFS landscape is shifting fast. In the past two weeks, EPA floated SRE reallocation options, finalized a 2024 cellulosic waiver that’s now facing legal challenges, and proposed ending the Greenhouse Gas Reporting Program—all while previewing how SRE projections will shape 2026–2027 standards. Our roundup explains what this means for RIN demand, RVO percentages, hearing deadlines, and compliance risk. If you manage RFS obligations, now is the time to reassess strategy and monitoring.

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Engineering Reviews, Attest Engagements & QAPs: Strengthening RIN Integrity Under RFS

Accuracy and accountability drive the RFS. This guide explains how engineering reviews (§80.1450), annual attest engagements (§80.1464), and voluntary Quality Assurance Plans (QAPs) work together to safeguard RIN validity—plus the protections of Q-RINs (§80.1473) and auditor independence (§80.1471). RINSTAR streamlines compliance by organizing RIN data, documentation, and transaction history in one secure system so you’re prepared for audits and ongoing oversight.

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Guide to Registering Your Facility for the RFS Program

Registering your facility with the EPA is the first step to participating in the Renewable Fuel Standard (RFS) program and generating RINs. This guide walks you through everything from CDX account setup and fuel pathway documentation to EPA approval. You’ll also learn about post-registration requirements like EMTS setup, reporting, and compliance audits. With preparation and the right support, your facility can successfully complete registration and begin producing renewable fuel under the RFS program.

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EPA Acts on Small Refinery Exemption Backlog

The EPA has acted on a backlog of 175 Small Refinery Exemption (SRE) petitions covering compliance years 2016–2024. After consultation with the DOE, EPA granted 63 full exemptions, 77 partial exemptions, denied 28 petitions, and ruled 7 ineligible. The agency also clarified its policy on retired RINs, allowing them to be restored when exemptions are granted without impacting RIN availability for 2024 and beyond. While many see this as a step toward clarity for the Renewable Fuel Standard (RFS), industry reactions remain mixed, with concerns about potential market impacts on biodiesel, renewable diesel, and SAF.

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The Responsible Corporate Officer (RCO): Why the Role Matters and How to Select the Right Person

The Responsible Corporate Officer (RCO) is the EPA-facing point of accountability for RFS compliance. This guide explains core duties (accurate reporting, valid RIN generation, fraud prevention, recordkeeping), the real personal risks (criminal charges, fines, debarment), and the traits of an effective RCO. It also offers practical steps for small or flat organizations and shows how RINSTAR helps with RIN tracking, EMTS sync, audits, and document control so that leaders can stay transparent, accurate, and protected.

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Step-by-Step Guide to Registering Your Company for the EPA’s RFS Program

Registering for the EPA’s Renewable Fuel Standard (RFS) program can feel overwhelming, but it’s essential for producing renewable fuel and generating RINs. This guide walks you through every step, from creating your CDX account and assembling documentation to obtaining an engineering review and submitting your package. With clear explanations and tips, you’ll gain confidence navigating the process and ensuring compliance.

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How to Create a CDX Account for EPA Reporting

Getting started with EPA reporting programs, like the Renewable Fuel Standard (RFS), begins with creating a CDX account through Login.gov. This guide walks you through the registration process step by step—and shows how RINSTAR can help streamline RIN management, compliance reporting, and documentation once your account is set up.

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