California Low Carbon Fuel Standard—National Template?
Late last week, the California Air Resources Board (CARB) released its long-awaited Low Carbon Fuel Standard (LCFS). The standard-the first of its kind in the world-will require producers, importers and refiners of fuels to lower the carbon imprint of that fuel by 10% in the eight years from when the standard goes into effect in 2012.
The California standard provides an important template for further LCFS developing in other states and at the federal level. Gov. Schwarzenegger acknowledged this in his statement praising the standard, noting that 16 other states were looking to California for leadership on the issue, also, the report itself indicates that CARB is “working closely with the U.S. EPA to assure that the approaches [towards ILUC analysis] taken in the two analyses are as consistent and transparent as possible.”
The Energy Policy Act of 2005 amended the Clean Air Act, creating the Renewable Fuel Standard (RFS) program. EPA promulgated regulations under this statute that became effective on September 1, 2007. The Energy Independence and Security Act of 2007 (EISA), further amended the Clean Air Act provisions governing the RFS program. Some of the major changes enacted in EISA include:
- Expansion of the applicable volumes of renewable fuel.
- Separation of the renewable fuel volume requirements into four categories: cellulosic biofuel, biomass-based diesel, advanced biofuel, and total renewable fuel.
- Changes to the definition of renewable fuels and criteria (e.g. life cycle greenhouse gas (GHG) emission performance) for determining which if any of the four renewable fuel categories a given renewable fuel is eligible to meet.
- Expansion of the fuel pool subject to the standards to include diesel and certain nonroad fuels and expansion of the obligated parties to include refiners, certain blenders, and importers of those fuels.
- Inclusion of specific types of waivers and EPA-generated credits for cellulosic biofuel.
EPA is developing a Notice of Proposed Rulemaking to implement these changes to the RFS program, which generally are not effective until EPA issues final regulations.
One of the most controversial provisions of the California standard is its inclusion of Indirect Land-Use Change (ILUC) analysis in its calculation of a fuel’s potential footprint. ClimateIntel has covered the issues of ILUC before, but essentially ILUC involves capturing the emissions that occur because of changing land use due to higher demand for certain crop-based biofuels, such as corn ethanol. In determining how to calculate ILUC, California looked at a series of different parameters, including crop yield elasticity, elasticity of land transformation and trade elasticity; using these parameters, the State developed ILUC calculations for a number of different ethanol fuel streams, including various corn-derived ethanol products and sugarcane ethanol.
The standard acknowledges a number of potential areas of uncertainty in its ILUC analysis—including questions about model inputs, the percentage of the carbon stored above and below ground (in biomass or soils) released into the atmosphere do to land conversion and others. In approving the standard, CARB asked its staff to continue to study these areas of uncertainty and report back by 2011.
In the coming weeks, ClimateIntel will be looking further into the computer modeling relied upon by CARB and evaluating some of the major uncertainties associated with the modeling. ClimateIntel will also review a recent study, discussed in the New York Times’ Green, Inc. blog questioning whether an LCFS even makes sense.
For further information about this topic, please contact Akin Gump.


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