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AB 32's 44 Early Action Programs by ARB
AB 32 Discrete Early Action and Early Action list of the California Global Warming Solutions Act of 2006
A suite of 44 Early Actions have been acted on by the ARB Board. These Early Actions are a mix
of regulatory and voluntary greenhouse gas strategies, to be
implemented during the 2007 - 2012 timeframe under AB32,
California's groundbreaking law to reduce greenhouse gas
emissions to 1990 levels by 2020.
The California Global Warming Solutions Act of 2006 (AB 32) creates a
comprehensive, multi-year program to reduce GHG emissions in California, with the
overall goal of restoring emissions to 1990 levels by the year 2020
Discrete Early Action – Greenhouse gas reduction measure underway or
to be initiated by ARB that meets the AB 32 legal definition as
identified by the Health and Safety Code Section 38560.5. Discrete
early actions are regulations to reduce greenhouse gas emissions
adopted by the Board and enforceable by January 1, 2010.
Early Action – Greenhouse gas reduction measures underway or to be
initiated by ARB in the 2007 – 2012 timeframe. These measures may
be regulatory or non-regulatory in nature.
The ARB is one of many state agencies pursuing early actions. The CAT has
identified and is refining additional GHG reduction strategies that can be accomplished
or initiated in the 2007-2009 period.
The ARB is also in the process of developing a comprehensive Scoping Plan,
due in late 2008, which will outline a multifaceted approach to meeting the 2020
emissions reduction target defined in AB 32. The Scoping Plan will evaluate
opportunities for sector-specific reductions, integrate synergistically all ARB and CAT
early actions and additional GHG reduction measures by both entities, identify
additional measures to be pursued as regulations, and define the role of any potential
market mechanisms such as a cap-and-trade program.
AB 32 requires that all GHG reduction regulations adopted and implemented by
the Board be technologically feasible and cost-effective. The law also requires that GHG
measures be structured to prevent negative impacts on emissions of criteria pollutants
(e.g., hydrocarbons, particulate matter) and to avoid any disproportionate
socioeconomic effects (among other criteria).
Measures Recommended for Reclassification as Discrete Early Actions
- SmartWay Truck Efficiency requiring existing
trucks/trailers to be retrofitted with the best available “SmartWay Transport”5
and/or ARB approved technology. Technologies that reduce GHG emissions
from trucks may include devices that reduce aerodynamic drag and rolling
resistance. Aerodynamic drag may be reduced using devices such as cab roof
fairings, cab side gap fairings, cab side skirts, and on the trailer side, trailer side
skirts, gap fairings, and trailer tail. Rolling resistance may be reduced using
single wide tires or low-rolling resistance tires and automatic tire inflation systems
on both the tractor and the trailer.
- Tire Inflation Program: This measure is recommended to be re-classified as a discrete
early action measure. The strategy involves actions to ensure that vehicle tire
pressure is maintained to manufacturer specifications. Specifically, the strategy
seeks to ensure that tire pressure in older vehicles is monitored by requiring that
tires be checked and inflated at regular service intervals. One potential approach
would be to require all vehicle service facilities, such as dealerships,
maintenance garages, and Smog Check stations, to check and properly inflate
tires. It is also anticipated that signage at fueling stations clearly indicate the
availability of compressed air at no charge. Staff also recommends that the
feasibility of conducting an extensive outreach program be investigated.
- Reduction of PFCs from the Semiconductor Industry: This measure is recommended to
be re-classified as a discrete early action measure. The strategy involves
establishing a PFC emissions reduction goal and determining measures to
achieve that goal. There are several approaches the industry has either
employed or committed to continue evaluating to reduce PFC emissions from
semiconductor production, including process optimization (optimizing the use of
PFCs, such as in the chamber cleaning process), alternative chemistry
development, emissions abatement; and recovery/recycling (separation of
fluorinated compounds from other gases for further processing and reuse).
- Green Ports: This measure is recommended as an additional discrete early action
measure. The strategy involves providing an alternative source of power for ships
while they are docked. For example, the ships can use cables to receive
electricity from the shore, thereby allowing them to shut off their auxiliary
engines, reducing emissions of air pollutants. Staff proposes to present the draft
regulation to the Board as a measure to reduce nitrogen oxides (NOx) and diesel
particular (PM) emissions and to quantify the associated (carbon dioxide) CO2
emission reductions. By focusing on NOx and PM reductions, staff will address
the local and regional health impacts of ships docked in California’s ports,
including any disproportionate impacts those emissions may have on
- Refrigerant Tracking, Reporting, and Recovery Program: This measure is
recommended as an additional early action. The strategy involves the reduction
of emissions of high GWP GHGs through establishing requirements for
enhanced monitoring, enforcement, reporting, and recovery.
---Refrigerant Recovery from Decommissioned Refrigerated Shipping
---Residential Refrigeration Program: This involves supporting existing
voluntary programs to promote the upgrade of residential refrigeration
equipment in need of repair, such as refrigerators and freezers.
---High-GWP Refrigerant Tracking, Reporting, and Deposit Program: This
strategy involves 1)
- Cement (A): Energy Efficiency of California Cement Facilities: This measure is
recommended as an additional early action. The strategy involves reducing CO2
emissions from fuel combustion, calcination, and electricity use by converting to
a low-carbon fuel-based production, decreasing fuel consumption, and improving
energy efficiency practices and technologies in cement production.
- Cement (B): Blended Cements: This measure is recommended as an additional early
action. The strategy to reduce CO2 emissions involves the addition of blending
materials such as limestone, fly ash, natural pozzolan and/or slag to replace
some of the clinker in the production of Portland Cement. Currently, ASTM
cement specifications allow for replacement of up to 5% clinker with limestone.
Most manufacturers could in fact replace up to 4% with limestone.
- Anti-idling Enforcement: This measure is recommended as an additional early action.
The strategy guarantees emission reductions as claimed by increasing
compliance with anti-idling rules, thereby reducing the amount of fuel burned
through unnecessary idling.
- Collaborative Research to Understand How to Reduce GHG Emissions from Nitrogen
Land Application: This measure is recommended as an additional early action.
The strategy involves the identification of methodologies for better characterizing
California’s nitrogen cycle. An important first step to better characterizing the
relationship between nitrogen land application and nitrous oxide formation in
California agriculture, landscaping and other uses as well as opportunities for
emission reductions is a collaborative research effort with stakeholders. The
research is expected to focus on identifying optimal ways to reduce nitrous oxide
emissions while increasing soil retention of nitrogen for plant uptake.
Suite of 44 Early Actions
- Above ground storage tanks
- Diesel - Offroad equipment (non-agricultural)
- Forestry protocol adoption
- Diesel - Port trucks
- Diesel - Vessel main engine fuel specifications
- Diesel - Commerical harbor craft
- Green ports
- Manure management (methane digester protocol)
- Local government GHG reduction guidance / protocols
- Business GHG reduction guidance / protocols
- Cool communities program
- Reduction of high GWP GHGs used in consumer products
- Reduction of PFCs from semiconductor industry
- SmartWay truck efficiency
- Low Carbon Fuel Standard (LCFS)
- Reduction of HFC-134a from DIY MVAC servicing
- Improved landfill gas capture
- Gasoline dispenser hose replaement
- Portable outboard marine tanks
- Standards for off-cycle driving conditions
- Diesel-privately owned on-road trucks
- Anti-idling enforcement
- SFo reductions from the non-electric sector
- Tire inflation program
- Cool automobile paints
- Cement - Blended cements
- Cement - Energy efficiency of California cement facilities
- Ban of HFC release from MVAC service / dismantling
- Diesel - offroad equipment (agricultural)
- Add AC lead tightness test and repair to Smog Check
- Collaborative research on GHG reductionf from nitrogen land application
- Specifications for commercial refrigeration
- Reduction of venting/leaks from oil and gas systems
- Requirement of low-GWP GHGs for new MVACs
- Hybridization of meium and heavy-duty diesel vehicles
- Reduction of SFo in electricity generation
- High GWP refrigerant tracking, reporting and recovery program
- Foam recovery / destruction program
- Alternative suppressants in fire protection systems
- Strengthen light-duty vehicle standards
- Truck stop electrification with incentives for truckers
- Diesel-vessel speed reductions
- Transportation refrigeration - electric standby
- Electrification of stationary agricultural engines.
Glossary of AB 32 Terms and Acronyms
AB 32 – Assembly Bill 32, the Global Warming Solutions Act of 2006
ARB – Air Resources Board
CAPCOA – California Air Pollution Control Officers Association
CAT – Climate Action Team, a committee of multiple state agencies led by the
Secretary of Cal/EPA
CO2 – carbon dioxide; a byproduct of fossil fuel combustion, cement production, and
other natural processes
Discrete Early Action – Greenhouse gas reduction measure underway or to be
initiated by ARB that meets the AB 32 legal definition as identified by the Health and
Safety Code Section 38560.5. Discrete early actions are regulations to reduce
greenhouse gas emissions adopted by the Board and enforceable by January 1, 2010.
Early Action – Greenhouse gas reduction measure underway or to be initiated by ARB
in the 2007 – 2012 timeframe. These measures may be regulatory or non-regulatory in
EJAC – Environmental Justice Advisory Committee
GHG – greenhouse gas or gases; defined in AB 32 as including carbon dioxide,
methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride;
also known as “the Kyoto six”
GWP – global warming potential; the relative warming of a greenhouse gas over a
specified time period as compared to carbon dioxide which has a GWP defined as 1.
The Kyoto Protocol uses a time period of 100 years.
HFCs – hydrofluorocarbons; a class of compounds whose molecules consist of carbon,
hydrogen, and fluorine atoms typically used as a refrigerant in air conditioning systems
and as aerosol propellants
HSC – (the California) Health and Safety Code
LCFS – Low Carbon Fuel Standard
MMTCO2E – million metric tons (of) carbon dioxide equivalent (gases)
MVAC – motor vehicle air conditioning (systems)
OAL – California Office of Administrative Law
OHRV – Off Highway Recreational Vehicle
PFCs – perfluorocarbons, a class of compounds derived from hydrocarbons by
replacement of hydrogen atoms by fluorine atoms. PFCs are made up of atoms of
carbon, fluorine, and/or sulfur, and are mostly used in the semi-conductor industry
SCAQMD – South Coast Air Quality Management District
SF6 – sulfur hexafluoride; a highly stable non-conducting chemical used for and emitted
from various industrial processes and in the manufacturing of electrical circuitry
SOURCE OF AB 32 Updates
Check back at this website (arb.ca.gov/gmbond) for updates and documents
Climate Change Background Links and Documents
California Climate Action Team
Goods Movement and Ports Action Plan -- joint webpage of the California Business, Transportation & Housing Agency (BT&H) and the California Environmental Protection Agency (Cal/EPA).
Edited by Carolyn Allen