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Become a Member

Western Washington Clean Cities is a national leader in the clean fuels market and only provides the top resources and technology to PSCC members. Through the Western Washington Clean Cities program our members receive education, technical assistance, access to grant funds and other services to implement the initiatives focused on alternative fuels and vehicles, fuel blends, fuel economy, hybrid electric vehicle and idle reduction.

Read About More Benefits

First, potential members must fill out the Memorandum of Understanding (MOU). This can be done by downloading and printing the MOU. Signatories of the MOU agree to undertake their best efforts to achieve the goals and objectives of WWCCC and to pay Annual Membership Fees or provide in-kind services. After the Coalition receives the MOU, WWCCC will contact the new member and send an invoice for annual membership fees.

Register Today
Read More | Membership Information Packet

Current Sponsors & Members



Coalition Sponsors provide financial support or in-kind services above the amount required of general members.  The Coalition acknowledges and thanks the following Coalition Sponsors for their generous support:

Diamond Sponsors ($10,000 or more):


Gold Sponsors ($2,500 to $9,999):


Silver Sponsors ($1,500 to $2,499):


Associated Petroleum
Allied Waste Services
BlueStar Autogas
City of Bainbridge Island
City of Bellevue
City of Enumclaw
City of Everett
City of Issaquah
City of Kirkland
City of Lacey
City of Mercer Island
City of Olympia
City of Renton
City of Sammamish
City of Seattle **
City of Shoreline
City of Snoqualmie
City of Tacoma
Clean Energy Fuels Corporation
CNG for Hire
Eastside For Hire Taxi
General Biodiesel
The Green Car Company
Heracles Energy Corp
Heritage Propane **
Intercity Transit
Jefferson County
King County **
Kitsap Transit

MC Electric Vehicles
Northwest CNG LLC
Northwest Trek Wildlife Park
Pierce County
Pierce Transit
Port of Seattle - Aviation Program** and Seaport/Corporate Program
Port of Tacoma **
Promus Energy
Propel Biofuels
Puget Sound Clean Air Agency **
Puget Sound Energy**
Puget Sound Solar
Quest Diagnostics
Rainier Petroleum
Roush CleanTech **
Saybr Contractors
SeaPort Biofuels
Shoreline Community College
Shuttle Express
Snohomish County
Sound Refining
Starbucks Coffee Company
Stita Taxi
Tacoma Public Utilities
Thurston County
ThyssenKrupp Elevator
US Department of Energy
US Environmental Protection Agency
US General Services Administration
University of Washington
WSU Extension Energy Program
Washington State Department of Ecology
Washington State Department of Transportation
Waste Management
Wilcox and Flegel
World CNG

**Denotes Coalition Sponsor. Members can become Coalition Sponsors