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CARB's Proposed AB32 Change List

AB32 and EPA Smartway strengthen trucking emissions compliance and suggest trucking solutions

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Smartway Truck Efficiency

Require existing trucks and trailers to be retrofitted with devices that reduce aerodynamic drag.

According to the author's office, there are approximately 68,000 on-highway Class 8 trucks (heavy duty diesel) operating in California that could benefit from the installation of the SmartWay Upgrade retrofit kids.

  • A SmartWay Upgrade retrofit kit includes emission control devices, including diesel oxidation catalysts and particulate traps and an optional package including improved tractor or trailor aerodynamics, single wide low-rolling resistance tires, and onboard idling reduction technology.
  • The estimated fuel demand savings is 20% to 38% of the total demand from the fleet of 68,000 trucks.
  • According to estimates by the U.S. Environmental Protection Agency (U.S. EPA) SmartWay Program, owner/operators who may implement these technology bundles may expect to recover their loan payments from fuel costs savings in four to eight months.
  • Further, this bill could substantially reduce the consumption of diesel fuel in California (by up to 16% of the 2004 on-road diesel fuel consumption ), advance the state's petroleum independence/reduction goal for the on-road transportation sector, reduce air pollution (oxides of nitrogen, particulates), reduce greenhouse gas emissions, and save California truckers nearly $1 billion annually.
  • Aerodynamic drag (wind resistance) accounts for most truck energy losses at highway speeds. Reducing drag improves fuel efficiency. The longer the drive and the higher the speed, the greater the potential efficiency benefits.
  • Truck tractor aerodynamic options include
    • roof fairings (an integrated air deflector mounted on the top of the cab),
    • cab extenders (known as gap seals which reduce the gap between the tractor and the trailer),
    • side fairings,
    • tail fairings, and
    • a front bumper air dam (to reduce air flow beneath the truck).
  • According to the U.S. EPA, these aerodynamic options can improve fuel economy by up to 15%.

For virtually every trucking company, fuel is the second largest expense behind labor.

In Oregon, the Lane Regional Air Pollution Authority indicates that they have been operating a SmartWay loan program since June, 2004, that AB 1901 would emulate.

AB 2647 (Oropeza, 2006) would establish a revolving loan fund program to finance the installation of electrification facilities that would enable heavy duty diesel trucks to use plug-in electricity to power their in-cab needs rather than using main engine or auxiliary diesel powered units.

Replacement Tires

AB 844 (Nation), Chapter 645, Statutes of 2003, requires the Energy Commission to develop a comprehensive tire energy efficiency program. The goal is to equalize the energy efficiency of replacement tires sold in California with the original tires on new vehicles. To help achieve the Corporate Average Fuel Economy (CAFE) standards, the auto industry generally equips new vehicles with tires that have significantly lower rolling resistance and better fuel economy than the average replacement tire. SOURCE: Bill 1901-1950 Date of Hearing: April 3, 2006

EPA SmartWay Grow & Go

SmartWay Grow & Go is a program developed by the U.S. Environmental Protection Agency (EPA) to promote the environmental benefits of renewable fuels.

What are the goals of SmartWay Grow & Go?

By working with our current and prospective SmartWay Transport partners, the SmartWay Grow & Go program aims to promote the environmental benefits of renewable fuels. By 2012, EPA's goal is for 25 percent of our SmartWay partners to commit to use renewable fuels, and by 2020 to have 50 percent of our partners commit to use renewable fuels.

Through SmartWay Grow & Go, EPA and its partners will expand technical information about renewable fuels and increase public awareness of their environmental benefits. In addition, EPA will work with our federal partners and others to clarify and streamline the regulatory framework, which will remove barriers to the increased use of quality renewable fuels.

The National Biodiesel Board, the national trade association for biodiesel producers, has a voluntary accreditation and quality assurance program called BQ-9000. It is managed by an independent organization, the National Biodiesel Accreditation Commission, and certifies biodiesel producers and distributors. For more information, please visit:




Idling Reduction

Long-duration truck and locomotive engine idling has a significant impact on our environment and economy:
  • Annually, over 1 billion gallons of diesel fuel consumed
  • Annually, 11 million tons of carbon dioxide, 200,000 tons of oxides of nitrogen, and 5,000 tons of particulate matter emitted
  • Increased engine maintenance costs and shortened engine life
  • Impaired driver rest and health
  • Elevated noise levels

Funding for Idle-Fund

Idling Reduction: Partnership and Relationship Management

Idle Fund

To implement idle reduction projects successfully and cost effectively EPA will work with a group of key partners and stakeholders. Our objective is to involve all affected parties in developing projects, from site selection and funding to actual deployment. Some of these partners will include:

  • State and local air quality planners
  • State and local transportation officials
  • State and local energy officials
  • Idle reduction technology manufacturers
  • Trucking fleets and railroad companies
  • Truck stop owners and operators
  • Environmental and community organizations
  • Other groups interested in reducing idling

SmartWay Idling Reduction: Innovative Funding and Incentive Opportunities

Idle Funding and Incentives

Occasionally EPA issues grants to states and non-profit organizations to demonstrate truck and locomotive idle reduction technologies.

Lane Regional Air Pollution Authority (Oregon) - $500,000 for "Everybody Wins - Phase II" Lane County will install and evaluate 250 Auxiliary Power Units (APU’s) in long-haul tractor-trailer trucks with sleeper cabs that haul freight along the I-5 corridor, primarily in Washington, Oregon and California. This project is designed to serve the needs of the independent owner-operator and the small fleet by providing no-interest loans to finance the cost of the APUs.

American Transportation Research Institute (ATRI) - $500,000 for "Demonstration of Integrated Mobile Idle Reduction Solutions” ATRI will demonstrate and evaluate mobile idle reduction technologies on about 100 trucks, either installed as part of the manufacturing process or before the truck goes into service.

North Carolina State University (NCSU) - $500,000 for “Truck Original Equipment Manufacturer (OEM) Auxiliary Power Unit (APU) Prep Kit Design and Installation” NCSU will work with fleet operators, technology vendors, and truck manufacturers to design installation kits for after-market purchase auxiliary power units (APUs). SOURCE: For a list of currently open grants, see EPA's grants funding web site at

# SmartWay Transport Partnership (a collaborative voluntary program between EPA and the freight industry that will increase the energy efficiency and energy security of our country while significantly reducing air pollution and greenhouse gases):

Voluntary Diesel Retrofit Program (a voluntary program that supports retrofitting of heavy-duty diesel engines manufactured prior to 2007, including idle reduction technologies):

Clean School Bus USA (voluntary program to reduce both children's exposure to diesel exhaust and the amount of air pollution created by diesel school buses):

It All Adds Up to Cleaner Air (a unique public education and partnership-building initiative developed collaboratively by several federal agencies to help regional, state and community efforts to reduce traffic congestion and air pollution)

OTHER FUNDING: Department of Transportation (DOT) DOT has several financial assistance and innovative finance programs. Department of Energy (DOE) DOE traditionally funds research and development grants and contracts for idle reduction technologies. DOE also supports deployment projects under both the FreedomCAR and Vehicle Technologies and the Clean Cities programs. California Carl Moyer Program: (provides funds to support the incremental cost of cleaner diesel engines and equipment. Eligible projects include the installation costs for auxiliary power units.) If you are interested in working with EPA in developing projects please Contact the SmartWay Partnership:

SmartWay Transport Partnership
2000 Traverwood
Ann Arbor, MI 48105
Call Center (734) 214-4767
Email:smartway_transport -@-
Fax:(734) 214-4052

Edited by Carolyn Allen
| carb | carbon footprint | compliance | pollutants | emissions | trucking |


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