Commute Trip Reduction - Rules, Policy, and Guidance

WSDOT makes the statewide rules and policies relevant to the Commute Trip Reduction (CTR) Law of 1991 available online for interested parties.

In 2006, the Commute Trip Reduction Efficiency Act (pdf 122 kb) built upon the established employer program and expanded responsibility for success to local governments who work with employers and make broad economic investment decisions. Local plans and programs are now expected to be integrated with local land use and transportation plans to align policies and investments.

The Transportation Demand Management Technical Committee (formerly known as the state Commute Trip Reduction Board), local jurisdictions, regional transportation planning organizations, transit agencies and employers helped to craft the program's requirements as mandated by the state law, including:

  • RCW 47.04.170: Designates WSDOT the responsible agency to work with the federal government to support transit, specialized transportation and ridesharing programs.
  • RCW 47.06: Defines WSDOT's planning role and calls for a statewide transportation policy and multimodal transportation plans and outlines the plan requirements.
  • RCW 70A.15.4070: Requires the WSDOT to provide administrative support to the Commute Trip Reduction Board and technical assistance to local jurisdictions.
  • RCW 70A.15.4100: Requires all state agencies to aggressively develop substantive programs to reduce commute trips by state employees.

State commute trip reduction law

State agency commute trip reduction law

Commute trip reduction rules

Commute trip reduction guidance

Tax credit law


Ricardo Gotla