Jump to main content or area navigation.

Climate Change Contacts

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Climate Change in the Pacific Southwest
— Transportation

Recovery Act Funds Reduce Diesel Emissions
school buses

EPA awarded $4 million in Recovery Act funding to reduce diesel emissions from school buses in San Diego and Nevada, and from city-owned equipment in Phoenix. Feature Story

EPA is leading a number of initiatives to help reduce greenhouse gas emissions from transportation, and is developing the nation's first standards to reduce greenhouse gas emissions from new cars and trucks.

On this page:

  • SmartWay Sign on to fleet standards for your goods movement fleet and get the SmartWay logo on your trucks
  • West Coast Collaborative Find out how to green your fleet and get funded for the upgrades and retrofits
  • California Emerging Clean Air Technology Initiative Find out some of the cutting edge technologies that slash transportation emissions and improve air quality.
  • Green Fleets explore advanced and alternative vehicle and fuel technologies
  • Ports Learn how ports are addressing climate change



SmartWay is EPA's voluntary program for improving fuel efficency and reducing greenhouse gas and air pollution from the transportation sector.

All of EPA SmartWay transportation programs result in significant, measurable air quality and/or greenhouse gas improvements while maintaining or improving current levels of other emissions and/or pollutants.

Find out what you can do to save fuel, money, and the environment with SmartWay:

Contact Trina Martynowicz

West Coast Collaborative

west coast collaborativetransportation

The West Coast Collaborative Exiting EPA (disclaimer) is a partnership between federal, state, and local governments which is focused on creating, supporting and implementing diesel emissions reductions projects along the West Coast.

The Collaborative is focused on creating, supporting and implementing diesel emissions reductions projects. The Collaborative is organized around six sector workgroups that meet regularly by teleconference and occasionally face-to-face:

Contact Penny McDaniel

California Emerging Clean Air Technology Initiative

On July 9, 2008, representatives from EPA, the California Environmental Protection Agency, the California Air Resources Board, the South Coast Air Quality Management District, and the San Joaquin Valley Air Pollution Control District signed a Memorandum of Agreement (MOA). The principal goal of the agreement is to improve air quality by aligning agency research resources, where possible, to evaluate innovative and emerging emission reduction technologies and choose technologies on which to collaborate with each other to accelerate development and deployment. The Clean Technology Initiative is an ongoing effort with the signatories of the MOA, as well as others, to reduce criteria and greenhouse gas air pollutants targeted in the South Coast and San Joaquin Valley.

Contact Trina Martynowicz

Green Fleets

green vehicle

Green Vehicle Guide Use this guide to choose the cleanest and most fuel-efficient vehicle that meets your needs. Low emissions and good fuel economy are both important for the environment.


The transportation sector contributes to 28% of the national inventory for greenhouse gas emissions. When standard gasoline or diesel fuel is burned, carbon dioxide, a greenhouse gas, is emitted. Each gallon of gasoline and diesel burned creates between 20 and 22.5 lbs of CO2. That's about 6 to 9 tons of CO2 each year for a typical vehicle!

There are simple low- and no-cost approaches that you can take in reducing the transportation sector's contribution to climate change. Many of these strategies can even save you money. The Fuel Efficient Vehicles and Alternative Fuels Smart Choice Guide provides users with various tools and resources to help them make smart choices about alternative fuel usage, fuel efficiency improvements, preventative maintenance practices, and green fleet procurement. This guide covers the following topics:

The Green Fleets Funding Resources will help public and private fleet professionals find truly green, practical, and affordable solutions.

EPA is fuel neutral. While every attempt is made to make the resources comprehensive, its intention is to provide the best and most available tools/data to assist you in decision making.


san pedro port

While emissions reductions programs at ports have so far emphasized criteria pollutants and their direct effects on public health, the action plans that many ports have adopted,such as the San Pedro Ports Clean Air Action Plan, Exiting EPA (disclaimer) may also have benefits in terms of greenhouse gas reductions.

Under an agreement with the Attorney General of California , the Port of Los Angeles will conduct a comprehensive inventory of port-related greenhouse gases—tracking these emissions from their foreign sources to domestic distribution points throughout the United States. The port will annually report this data to the California Climate Action Registry, Exiting EPA (disclaimer) a program which gathers baseline emissions data about greenhouse gases generated in California.

Contact LaWeeda Ward

Top of page

Jump to main content.