News & Resources
Insights, regulatory updates, and best practices.
September 21, 2026
IRS Notice 2026-53 introduces the 2026 emissions rate table and guidance on agricultural practices, manure-derived fuels, and transition relief for Section 45Z.
August 17, 2026
On July 29th, the Greenhouse Gas Protocol and the International Organization for Standardization announced they will combine their corporate carbon accounting standards into a single, harmonized global framework. For renewable fuel producers and the corporate buyers who purchase their products, this consolidation could reshape how emissions reductions are measured and valued.
August 17, 2026
The bipartisan bill introduced on July 22nd would expand the Renewable Fuel Standard's (RFS) definition of renewable biomass to include woody materials from wildfire prevention. For cellulosic ethanol and SAF producers, there are significant implications.
August 12, 2026
The US has implemented a new Section 301 tariff on biofuels, feedstocks, and other goods from 60 countries. Ranging from 10% to 12.5% depending on the country, the tariff replaces a temporary 10% global duty that expired on July 24th. The impacts are significant for US renewable fuel producers, especially those who have increasingly turned to overseas feedstock supply.
July 22, 2026
In the Renewable Fuel Standard (RFS) program, every Renewable Identification Number represents a discrete unit of verified compliance
July 16, 2026
A deal-maker's guide to the Section 45Z Clean Fuel Production Credit with Faith Larson, VP of Renewables & Legal Counsel at Mickelson & Company — qualifying your fuel, navigating IRS guidance, structuring a credit sale, and closing on time.
July 16, 2026
A practical look inside Canada's newest clean fuel program with Jermin Hsiesh, Manager, Renewable Gas Compliance & Reporting at FortisBC — how CFR credits work, what drove a 400% surge in registered RNG volumes, and where the regulation heads after 2030.
May 28, 2026
The U.S. Environmental Protection Agency has finalized sweeping renewable fuel requirements for the next two years, setting volume mandates that officials say are the largest in the 20-year history of the Renewable Fuel Standard program. The rule, known as "Set 2," was announced at a White House agriculture event and is positioned by the Trump administration as a cornerstone of its domestic energy and farm policy agenda.
May 28, 2026
On February 3, 2026, the U.S. Department of the Treasury and the Internal Revenue Service released proposed regulations for the clean fuel production tax credit under IRC section 45Z, which were published in the Federal Register the following day. The proposals clarify how producers demonstrate eligibility, calculate the credit amount, and substantiate emissions rates and "qualified sales". It also introduces safe harbors designed to reduce audit risk on those issues.
May 28, 2026
Under the LCFS, certain feedstocks qualify for a reduced carbon intensity (CI) value because they are waste materials, residues, or by-products of other commercial or industrial processes. These are called Specified Source Feedstocks, and they can significantly increase the credit value of a fuel pathway when properly documented and verified.
May 28, 2026
As federal and state clean-fuel programs become more valuable and more demanding, renewable fuel producers need to treat compliance data as operating infrastructure—not back-office paperwork.
May 28, 2026
For years, RNG producers and their commercial partners operated under a single, relatively familiar regulatory framework: 40 CFR Part 80 Subpart M, the general RFS rules. The Biogas Regulatory Reform Rule (BRRR) changed that calculus. EPA has now layered in Subpart E—a dedicated ruleset specifically covering biogas-derived renewable fuel—introducing new requirements for RNG producers, RNG RIN separators, pathway transfer documents (PTDs), recordkeeping, attest engagements, quality assurance programs (QAPs), and the treatment of potentially invalid RINs.
April 12, 2026
We are proud to announce Rimba’s partnership with Aveva — a significant step forward in making industrial reporting and analysis faster, more reliable, and more connected to real plant operations.
March 8, 2026
ISCC certification audits verify that organisations meet international sustainability and carbon certification requirements across three core pillars: traceability, mass balance, and GHG emissions calculations. Traceability ensures certified material can be followed from intake to dispatch, mass balance guarantees that sustainability claims never exceed verified certified inputs, and GHG methodology confirms that emission reduction claims are defensible and supported by verifiable records. Organisations that invest in robust documentation, consistent reconciliations, and clearly evidenced calculation methodologies are best positioned to achieve and maintain ISCC certification.
March 8, 2026
RNG volumes under the Renewable Fuel Standard (RFS) are not “operational KPIs”; they are the quantitative basis for RIN generation, transfer, and downstream compliance, and EPA describes RINs as the “currency” of the program. For biogas/RNG pathways, the regulations place reliable, continuous measurement (or approved alternatives), and auditable records at the center of eligibility and RIN integrity. This is where data historians fail often, creating gaps in the data and as such adds to headache, manpower, and cost to detect the gaps and apply the proper course of action to fill/substitute the data gap. As such it is important to have systems in place that provide proper monitoring and action.