Archived: Alternative Measurement Protocols for Biogas and Renewable Natural Gas
The Renewable Fuel Standard requires that biogas and renewable natural gas used to produce renewable fuels be measured using methods specified in the regulations at 40 CFR 80.155(a)(1) or (2). Parties may seek EPA approval for an alternative measurement method by submitting an alternative measurement protocol under 40 CFR 80.155(a)(3). Biogas and RNG producers may rely on these approved alternative measurement protocols by submitting the relevant information as part of their registration submissions under 40 CFR 80.135(c) or (d), as applicable.
Below is a list of approved alternative measurement protocols under the RFS program.
| EPA Determination | Method | Product(s) | Date |
|---|---|---|---|
| Emerson – Micro Motion, Inc. (pdf) | Coriolis Flow Meters | Biogas, RNG | 6/12/2024 |
| Endress+Hauser USA (pdf) | Coriolis Flow Meters | Biogas, RNG | 6/12/2024 |
| SICK, Inc. (pdf) | Ultrasonic Flow Meters | Biogas, RNG | 7/2/2024 |
| Endress+Hauser USA (pdf) | Ultrasonic Flow Meters | Biogas, RNG | 7/2/2024 |
| Kurz Instruments, Inc. (pdf) | Thermal Mass Flow Meters | Biogas, RNG | 7/10/2024 |
| Coalition for Renewable Natural Gas (pdf) | Coriolis Flow Meters | Biogas, RNG | 7/16/2024 |
| Emerson Automation Solutions (pdf) | Ultrasonic Flow Meters | Biogas, RNG | 7/16/2024 |
| Red Leaf RNG (pdf) | Coriolis Flow Meters | Biogas, RNG | 7/23/2024 |
| West Branch RNG (pdf) | Ultrasonic Flow Meters | Biogas, RNG | 7/30/2024 |
| Fidem Energy (pdf) | Thermal Mass Meters | Biogas, RNG | 8/2/2024 |
| Sage (pdf) | Thermal Mass Meters | Biogas, RNG | 8/2/2024 |
| SCS Energy (pdf) | Thermal Mass Meters | Biogas, RNG | 8/2/2024 |
| Red Leaf RNG (pdf) | Coriolis Meters | Biogas, RNG | 9/4/2024 |
| Red Leaf RNG (pdf) | Thermal Mass Meters | Biogas, RNG | 9/4/2024 |
| Sage Prime (pdf) | Thermal Mass Meters; | Biogas, RNG | 9/10/2024 |
| Emerson Rosemount (pdf) | Orifice Plate Meters | Biogas, RNG | 9/10/2024 |
| Emerson Rosemount (pdf) | Orifice Plate Meters | Biogas, RNG | 9/10/2024 |
| SCS Energy (pdf) | Orifice Plate Meters | Biogas, RNG | 9/10/2024 |
| Fidem Energy (pdf) | Rotary style flow meters | Biogas, RNG | 9/25/2024 |
| KROHNE (pdf) | Ultrasonic flow meters | Biogas, RNG | 10/7/2024 |
| Tek-Tol (pdf) | Differential flow meters | Biogas, RNG | 10/7/2024 |
| McCrometer (pdf) | Differential flow meters | Biogas, RNG | 10/7/2024 |
Below is a list of submitted alternative measurement protocols under the RFS program.
| Issue ID | Company | Method |
|---|---|---|
| JSDEP-23100 | Hobre USA | Gas Analyzer |
| JSDEP-23321 | ECOTEC Solutions, Inc. | Gas Analyzer |
| JSDEP-23490 | Emerson Automation Solutions | Ultrasonic Flow |
| JSDEP-23528 | MRU Instruments Inc | Gas Analyzer |
| JSDEP-23599 | ECOTEC Solution, Inc. | Gas Analyzer |
| JSDEP-24012 | Sage Metering, Inc. | Orafice Plate Flow |
| JSDEP-24013 | Sage Metering, Inc. | Vortex Flow |
| JSDEP-24027 (2) | Fidem Energy, LLC | Thermal Mass Flow |
| JSDEP-24032 | Red Leaf RNG, LLC | Thermal Mass Flow |
| JSDEP-24033 | Red Leaf RNG, LLC | Coriolis Flow |
| JSDEP-24167 | Siemens Industry Inc. | Gas Analyzer |
| JSDEP-24173 | Fidem Energy, LLC | Rotary Displacement Flow |
| JSDEP-24456 | SCS Energy | Thermal Mass Flow |
| JSDEP-24457 | SCS Energy | Orafice Plate Flow |
| JSDEP-24538 | Endress + Hauser USA | Ultrasonic Flow |
| JSDEP-24751 | AP2E | Gas Analyzer |
| JSDEP-24761 | KROHNE, Inc. | Ultrasonic Flow |
| JSDEP-24762 | KROHNE, Inc. | Coriolis Flow |
| JSDEP-24855 | Three Petals RNG LLC | Rotary Displacement Flow |
| JSDEP-24856 | West Branch RNG, LLC | Ultrasonic Flow |
| JSDEP-24928 | Opal Fuels | Orafice Plate Flow |
| JSDEP-25161 | RDB Environmental LLC | Ultrasonic Flow |
| JSDEP-25162 | RDB Environmental LLC | Ultrasonic Flow |
| JSDEP-25163 | RDB Environmental LLC | Coriolis Flow |
| JSDEP-25172 | Endress + Hauser USA | Ultrasonic Flow |
| JSDEP-25225 (1) | Coalition for Renewable Natural Gas | Coriolis Flow |
| JSDEP-25225 (2) | Coalition for Renewable Natural Gas | CNG/LNG Weigh Tickets |
| JSDEP-25296 | Vaisala Inc | Gas Analyzer |
| JSDEP-25392 | Emerson - Rosemount, Inc. | Orafice Plate Flow |
| JSDEP-25393 | Emerson - Rosemount, Inc. | Orafice Plate Flow |
| JSDEP-25394 | Emerson - Rosemount, Inc. | Orafice Plate Flow |
| JSDEP-25477 | QED Environmental Systems Incorporated | Gas Analyzer |
| JSDEP-25618 | Emerson - Rosemount, Inc. | Orafice Plate Flow |
| JSDEP-25998 | ABB Inc. | Swirl Flow |
| JSDEP-26057 | Ohio Lumex | Gas Analyzer |
| JSDEP-26095 | Opal Fuels LLC | Rotary Displacement Flow |
| JSDEP-25278 | Hobre USA | Gas Analyzer |
| JSDEP-26507 | Endress + Hauser USA | Thermal Mass Flow |
| JSDEP-26546 | Dresser Utility Solutions | Rotary Displacement Flow |
| JSDEP-26642 | Fluid Components International | Thermal Mass Flow |
| JSDEP-26701 (1) | Tek-Trol | Cone Flow |
| JSDEP-26701 (2) | Tek-Trol | Coriolis Flow |
| JSDEP-26701 (3) | Tek-Trol | Venturi |