The Transportation Technical Committee (TTC) helps assure a coordinated regional transportation system by providing input on projects and conducting technical reviews of activities such as work programs and transportation studies. The group is composed of 22 professionals from various local and state agencies, including:

• One representative of the City of Airway Heights;
• One representative of the City of Cheney;
• One representative of the City of Liberty Lake;
• Three representatives of the City of Spokane;
• Two representatives of the City of Spokane Valley;
• One representative of the Kalispel Tribe of Indians;
• One representatives of small cities/towns;
• Three representatives of Spokane County;
• One representative of the Spokane International Airport;
• One representative of Spokane Regional Clean Air Agency;
• One representative of the Spokane Regional Health District; and
• Two representatives of Spokane Transit Authority;
• One representative of the Spokane Tribe of Indians;
• Three representatives of Washington State Department of Transportation District 6;
• One non-voting ex-officio staff representative of the Federal Highway Administration and Federal Transit Administration.