Implementation of the AB 32 Scoping Plan

This page last reviewed February 14, 2014


AB32 timeline

The Scoping Plan, approved by the Air Resources Board (ARB) December 11, 2008, provides the outline for actions to reduce California’s greenhouse gas (GHG) emissions.  The Scoping Plan requires ARB and several other state agencies to adopt regulations and other initiatives to reduce the state’s GHG emissions.

The Next Chapters (graphic to the right) - shows where we are in the AB 32 implementation process.  ARB has already adopted a number of regulations outlined in the Scoping Plan, and is continuing to fully implement Scoping Plan measures.  Under AB 32, the state must reduce GHG emissions to 1990 levels, or lower, by 2020.  In the long term, California established the aggressive goal of reducing emissions by 80 percent below 1990 levels by 2050 pursuant to Governor’s Executive Order S-3-05.

AB 32 requires ARB to update the Scoping Plan every five years.  The Scoping Plan update identifies opportunities to leverage existing and new funds to further drive GHG emission reductions through strategic planning and targeted low carbon investments. 

The Update defines ARB’s climate change priorities for the next five years and sets the groundwork to reach California's long-term climate goals set forth in Executive Orders S-3-05 and B-16-2012. The Update will highlight California’s progress toward meeting the near-term 2020 GHG emission reduction goals defined in the initial Scoping Plan.  These efforts put California on course to achieve the near-term 2020 goal, and have created a framework for ongoing climate action that can be built upon to maintain and continue economic sector-specific reductions beyond 2020, as required by AB 32.

In this Update, nine key focus areas were identified (energy, transportation, agriculture, water, waste management, and natural and working lands), along with short-lived climate pollutants, green buildings, and the Cap-and-Trade Program. 

These key focus areas have overlapping and complementary interests that will require careful coordination in California’s future climate and energy policies. These focus areas were selected to address issues that underlie multiple sectors of the economy.  As such, each focus area is not contained to a single economic sector, but has far-reaching impacts within many economic sectors.

For more detailed information about the 2013 Scoping Plan update, please visit:

For questions, please contact: Johnnie Raymond at (916) 445-8279