RINSTAR Blog
RIN Compliance Made Simple: Understanding D-Codes and Fuel Categories in the RFS
Confused by D-codes and fuel categories under the Renewable Fuel Standard (RFS)? This guide breaks down how RINs are categorized by fuel type, production method, and greenhouse gas reduction thresholds. Learn how D3 through D7 RINs interact with the RFS’s nested compliance structure and how RINSTAR can simplify reporting and compliance for your renewable fuel business.
Understanding RFS Compliance for RNG Producers, Biogas Producers, and RNG Separators
New to biogas or RNG compliance reporting? RINSTAR breaks down the latest EPA reporting requirements for Biogas Producers, RNG Producers, and RNG Separators. Learn what reports are due, when to file, and how to stay compliant under the Renewable Fuel Standard (RFS). Whether you’re managing RINs or biogas tokens, this guide simplifies the essentials.
Lawmakers, EPA Push Forward on RFS and Tax Credit Extensions
Lawmakers and the EPA are taking major steps to strengthen the Renewable Fuel Standard (RFS), from setting ambitious Renewable Volume Obligations (RVOs) for 2026 and beyond to extending critical tax credits that support the renewable fuels industry. In this update, RINSTAR breaks down the latest regulatory and legislative actions that stakeholders should know to stay compliant and informed.
Fueling Your Knowledge: How to Stay Informed on Renewable Fuel Standard (RFS) Updates and Industry Changes
Navigating the Renewable Fuel Standard (RFS) can be complex, but staying informed is key to compliance. From setting up alerts to joining industry groups, we’ll show you how to stay ahead with the latest updates, resources, and connections that keep your renewable fuel business compliant and growing.
Understanding Renewable Volume Obligations (RVOs)
At the heart of the U.S. Renewable Fuel Standard (RFS), Renewable Volume Obligations (RVOs) determine how much renewable fuel refiners and importers must blend annually. This article walks you through the evolution of RVOs—from RFS1 to RFS2—explains how the EPA sets these annual percentage standards, breaks down each D-code category (D3–D6), and shows how individual RVOs are calculated, including deficit carryover and RIN tracking tools.
EPA to Grant Emergency Waivers for E10/E15 Gasoline Sales
In response to looming fuel supply disruptions, the EPA has issued emergency waivers effective May 1–20, 2025, allowing gasoline with up to 15 % ethanol (E15) to be sold under E10 regulations. This temporary relief, granted at the request of Midwestern governors, also relaxes stricter E10 standards in seven states—boosting flexibility for fuel suppliers and helping ensure consistent consumer access. The agency may extend the waiver if fuel shortages persist
Understanding Renewable Identification Numbers (RINs)
Delve into Renewable Identification Numbers (RINs)—the 38-character alphanumeric codes tracking renewable fuel batches under the U.S. Renewable Fuel Standard (RFS). Learn their origin, structure, lifecycle stages (generation, separation, trading, retirement), and why they matter for compliance. Plus, discover how RINSTAR simplifies RIN management from EMTS registration to EPA reporting.
Understanding Remedial Actions in the Renewable Fuel Standard (RFS) Program
Under the RFS regulations (40 CFR Part 80 Subpart M and Part 1400), remedial actions are tailored responses to correct violations involving RIN generation, reporting, or transactions. This article outlines six common corrective scenarios—like transferring assigned RINs to the wrong party or transferring RINs without actual fuel—and guides you through proper documentation, EMTS use, and when to notify or seek EPA approval.
E15 Gains Momentum in Renewable Energy Landscape
On March 31, 2025, the USDA announced it will allocate $537 million through the Higher Blends Infrastructure Incentive Program (HBIIP) to fund 543 projects across 29 states—supporting fuel stations to install infrastructure for higher-blend biofuels like E15, E85, and B20, signaling significant growth for E15 in the renewable energy market.