City of Burbank (Burbank-Glendale-Pasadena Airport Authority)
Los Angeles World Airports (Los Angeles International Airport)
Port of Seattle (SEATAC International Airport)
San Diego Unified Port Authority (San Diego International Airport)
San Jose/Silicon Valley Chamber of Commerce (San José International Airport)
Sinergía 7/State of Hidalgo (Mexico) (Mexico City International Airport)

Mass Transit

Bay Area Rapid Transit District (BART)
California High-Speed Rail Authority
Los Angeles County Metropolitan Transportation Agency (MTA)
Pierce Transit Authority
Seattle Regional Transit Authority
Sonoma-Marin Area Rail Transit District
Southern California Regional Rail Authority

Freeway/Highway/General Transportation Planning

Automobile Club of Southern California
California Chamber of Commerce/Transportation California/California Alliance for Jobs
California Department of Transportation (CALTRANS)
Lake County Public Works Department
Los Angeles County Transportation Commission
Maricopa County/City of Phoenix/Phoenix Chamber of Commerce
Mendocino Council of Governments
Orange County Transportation Agency
Ventura County Transportation Commission
San Diego Association of Governments
San Francisco Bay Metropolitan Transportation Commission
Southern California Association of Governments
Southern California Regional Rail Authority (Ventura County Measure B Review)
Transportation commission of Monterey County
U.S, Department of Transportation Intelligent Transportation Program

Zero and Low Pollution Vehicles

Amerigon, Inc.
Calstart
Sacramento Municipal Utility District
The Next Generation
University of California, Davis Transportation Studies Program
Automobile Air Pollution Abatement Studies
South Coast Air Quality Management District
State of California Bureau of Automotive Repair
Long Haul Rail Transportation
Burlington Northern Santa Fe Railway
Eagle Mountain Corporation
Pacific High Speed Rail Corporation
Waste Management, Inc.

California Transportation Congestion Improvement Act (CA) - "Yes" on Proposition 42, 2002
Transportation Funds Measure (WA) "No" on I-745, 2000
No Fault Insurance (CA) - "No" on Prop. 104, 1988

Local Transportation Sales Tax Measures

Alameda County ½ Cent Sales Tax Measure (CA) - "Yes" on Measure B, 1989
Central Puget Sound Regional Transit Authority ½ Cent Sales Tax Measure (WA) - "Yes", 1995
Fresno County ½ Cent Sales Tax Measure (CA) "Yes" on Measure C, 1988 and 2002
Kern County ½ Cent Sales Tax Measure (CA) - "Yes", 1989
Lake County ½ Cent Sales Tax Exploration Survey (CA), 2001
Maricopa County ½ Cent Sales Tax Transportation Measure (AZ) - "Yes", 1994
Phoenix ½ Cent Sales Tax Transportation Improvement Measure (AZ) - "Yes" on Proposition 1, 1997
Riverside County ½ Cent Sales Tax Measure (CA) "Yes" on Measure A, 1988
Sacramento County ½ Cent Sales Tax Measure (CA) "Yes", 1993
San Bernardino County ½ Cent Sales Tax (CA) "Yes" on Measure A, 1987
San Bernardino County ½ Cent Sales Tax (CA) "Yes" on Measure I & J, 1989
San Mateo County ½ Cent Sales Tax (CA) "Yes" on Measure A, Nov. 2004
Santa Clara County ½ Cent Sales Tax Measure (CA) "Yes" on Measure A, 1984 and 2000
Santa Cruz County Transportation Commission - ½ Cent Sales Tax Measure (CA) - "Yes", 1991
Tulare County ½ Cent Sales Tax Measure (CA) "Yes", 1988
Ventura County ½ Cent Sales Tax Measure (CA) "Yes", 1989

Other Local Transportation Measures

San Jose Airport Initiative (CA) - "No," 1999
Rebuilding the Central Freeway, San Francisco (CA) "Yes" on Prop H, 1997