BRRR Compliance for RNG: What Operators Need to Get Right
- 2 days ago
- 2 min read
The Biogas Regulatory Reform Rule (BRRR) has tightened federal oversight of Renewable Natural Gas (RNG) production under the Renewable Fuel Standard (RFS).
RNG from landfills, dairies, and wastewater treatment plants must now be measured, sampled, and verified using EPA-approved methods before it qualifies for RIN generation or downstream sale.
This shift makes RNG compliance, RNG sampling, and data verification under the Renewable Fuel Standard central to maintaining eligibility and supporting RIN generation.
What Is Required for RNG Compliance Under BRRR?
BRRR introduces standardized, auditable requirements for RNG facilities across the Renewable Fuel Standard.
Operators must now demonstrate:
Verified RNG sampling and measurement using EPA-approved methods
Documented gas composition and flow rate data
Traceable records supporting RIN generation under the RFS
Audit-ready documentation aligned with EPA reporting expectations
These requirements apply across the RNG value chain, including landfill operators, dairy digesters, wastewater treatment plants (WWTPs), and RNG developers.
BRRR implementation began July 1, 2024 for new facilities, required registration updates by October 1, 2024, and is fully enforceable for all RNG pathways as of January 1, 2025.
Facilities that did not align registration, sampling, and reporting processes ahead of these deadlines are now operating under increased compliance risk.
Sampling and measurement are no longer supporting tasks—they are now part of the core compliance framework for RNG operations.
How to Meet RNG Sampling Requirements Under BRRR
To meet BRRR requirements, facilities must implement structured RNG sampling programs that are consistent, repeatable, and defensible.
A compliant RNG sampling program includes:
Flow rate measurement to quantify gas production volumes
Gas composition sampling to confirm methane content and renewable gas quality
Certified laboratory analysis using validated testing methods
Chain-of-custody documentation to track sample handling and transfer
Audit-ready records that connect field sampling to RFS reporting
These elements verify methane yield and renewable content, which are required for RIN qualification and compliance under the Renewable Fuel Standard.
Data Verification and Audit Requirements for RFS Compliance
BRRR places increased emphasis on data integrity, traceability, and audit readiness.
Facilities must ensure that:
RNG sampling data is consistent and reproducible
Laboratory results are certified and traceable
Documentation connects field sampling to final RFS reporting
Records can withstand third-party and EPA audit review
Certified lab results and third-party audit trails protect project owners, off-takers, and marketers by ensuring that RNG data is defensible.
Without verified sampling and traceable data, RNG does not meet compliance requirements under BRRR.
How Alliance Helps Facilities Meet BRRR Compliance Requirements
Alliance Technical Group supports RNG facilities with end-to-end gas quality programs designed to meet BRRR and Renewable Fuel Standard requirements.
From field sampling and chain-of-custody control to certified laboratory analysis (CH₄, CO₂, H₂S, O₂, siloxanes, moisture) and regulatory-grade RFS reporting, our programs are built to produce consistent, traceable, and audit-ready data.
Through this work, advisors like Shane Lee partner with facilities to translate regulatory requirements into practical, defensible sampling and reporting programs.
Shane Lee
RNG/Biogas Project Manager
