FAQs and Factsheet
The amendments to the LCFS regulation the Board adopted at its September 2018 hearing replace CA-GREET2.0 with the CA-GREET3.0 model and Tier 1 Simplified CI Calculators for LCFS fuel life cycle analysis. The CA-GREET3.0 model is used to generate the carbon intensities (CIs) of all fuel pathways, including Lookup Table pathways and applicant-specific Tier 1 and Tier 2 pathways.
*Minor changes to models posted on August 13, 2018 are documented in the second LCFS errata.
CA-GREET3.0 Supplemental Document and Tables of Changes. The CA-GREET3.0 model was developed from GREET1 2016 developed at Argonne National Laboratory. Argonne’s currently supported GREET versions are available. The changes staff made in converting GREET1 2016 into CA-GREET3.0 are documented in this document.
Lookup Table Pathways (Table 7-1)
CA-GREET3.0 Lookup Table Technical Support Documentation. Describes the calculations, assumptions, and conditions for using the Lookup Table pathways developed by CARB using CA-GREET3.0. The CI of Lookup Table pathways for California Average Grid Electricity used in Transportation and the Smart Charging/Smart Electrolysis pathways are subject to annual updates, pursuant to section 95488.5(d). For the 2019 CIs of these electricity pathways, visit LCFS Pathway Certified Carbon Intensities and technical documentation.
Temporary Pathways Table (Table 8)
Temporary pathways certified pursuant to section 95488.9(b)(4) of the LCFS regulation:
The table below lists all archived E85 Ethanol meetings & workshops. Current meetings can be found at Alternative Fuels Meetings & Workshops.
| Date | Description & Materials |
|---|---|
| September 8, 2010 | CARB Fuels Workshop in Sacramento, California from 1:00 p.m. - 4:30 p.m. to discuss updates to the E85 Specifications, amendments to the CaRFG regulations, and an E10 certification fuel.
|
| April 15, 2010 | CARB Fuels Workshop in Sacramento from 9:30 a.m. - 12:00 p.m. to discuss possible updates to the E85 specifications. |
The table below lists all archived Compressed Natural Gas (CNG) meetings & workshops. Current meetings can be found at Alternative Fuels Meetings & Workshops.
| Date | Description & Materials |
|---|---|
| May 19, 2010 | Public Meeting in Sacramento from 9:00 a.m. to 12:00 p.m. to Discuss Compressed Natural Gas (CNG) Fuel Specifications.
|
| August 3, 2005 | Public Consultation Meeting in Sacramento from 10:00 a.m. to 3:00 p.m. to Discuss a Draft Proposed Concept to Revise the Motor Vehicle CNG Specifications.
|
| February 17 and 18, 2005 | Change of Date: Natural Gas Quality Workshop Notice The California Energy Commission and the California Public Utilities Commission will conduct a joint workshop to address natural gas quality issues on February 17 and 18, 2005 in San Francisco, CA. |
| December 8 and 9, 2004 | Natural Gas Quality Workshop Notice The workshop is being conducted in collaboration with the California Air Resources Board and the California Department of Conservation’s Division of Oil, Gas, and Geothermal Resources. |
| May 9, 2002 | Notice of Cancellation The Hearing for consideration of amendments to the California Alternative Fuels for Motor Vehicle Regulations has been cancelled. A new notice will be published at least 45 days in advance of the public hearing. |
| March 28, 2002 | Notice of Change Location The Meeting Location for Public Hearing scheduled on May 16, 2002 for considering the adoption of Proposed Amendments to the Compressed Natural Gas and Liquefied Petroleum Gas Specifications in the California Alternative Fuels for Motor Vehicle Regulations has been changed. |
| February 19, 2002 | Notice of Postponement The Public Hearing scheduled on February 21, 2002 for considering the adoption of: Proposed Amendments to the Compressed Natural Gas and Liquefied Petroleum Gas Specifications in the California Alternative Fuels for Motor Vehicle Regulations has been postponed. |
| February 14 and 15, 2002 | Public Meeting Notice and Agenda to Discuss Proposed Amendments CNG and LPG Motor Vehicle
|
| December 21, 2001 | Proposed Amendments to the Compressed Natural Gas and Liquefied Petroleum Gas Specifications in the California Alternative Fuels for Motor Vehicle Regulations. For more information please go to the formal rulemaking area. |
| March 7, 2001 | Public meeting notice and agenda to discuss CNG motor vehicle fuel quality. |
| June 21, 2000 | Workshop notice and agenda to discuss the need to amend the alternative fuels regulations for LPG or CNG, and draft concepts. |
| October 29, 1998 | Workshop Notice for October 29, 1998 Re: Evaluation of the Motor Vehicle Fuel Specifications for Compressed Natural Gas CARB Gives First Time Approval to Compressed Natural Gas Truck Parts |
There are currently no Alternative Fuels meetings & workshops at this time.
| Date &Time | Location | Description & Materials |
| Thursday, May 29, 2025 | Virtual Meeting | The California Air Resources Board held a virtual public workshop to support the development of California’s Corporate Greenhouse Gas Reporting Program, established by Senate Bill (SB) 253 (Wiener, 2023), and the Climate-Related Financial Risk Disclosure Program, authorized by SB 261 (Stern, 2023). SB 219 (Wiener, 2024) amended both programs, extending certain deadlines and implementing other administrative changes. The workshop included an overview of the above-mentioned legislation, a timeline for regulatory development, and an overview of feedback received from stakeholders from our December 2024 California Climate-Disclosure Information Solicitation. Additional presentations will include a comparative analysis of greenhouse gas accounting and reporting mechanisms that currently exist across various regulatory and voluntary programs. Workshop Recording (posted 6/2/25) CARB Presentation Slides (posted 5/28/25) Montrose Environmental Presentation Slides (posted 5/28/25) UCLA Presentation Slides (posted 5/29/25) |
The California Air Resources Board solicited feedback to help inform its work to implement SB 253 (Wiener, Statutes of 2023) and 261 (Stern, Statutes of 2023), both as amended by SB 219 (Wiener, Statutes of 2024).
