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Welcome to King County's Commute Trip Reduction (CTR) Services website!

This website is intended as a resource for Employee Transportation Coordinators (ETCs) at CTR-affected companies throughout King County. ETCs are critical in the fight against traffic congestion and climate change by helping their employees make smart - and green - commutes.

Inside our website you'll find:

In 2007, as a result of the efforts of ETCs in developing and implementing CTR programs at their companies, CTR commuters state-wide reduced over 85,000 tons of greenhouse gas emissions (CO2 equivalent). Click here to view more CTR facts (2.23MB.PPT). Thank you for making a difference!

CTR Services contracts with cities in King County to assist in the implementation and enforcement of their CTR ordinances and to provide direct service to employers affected by the CTR Law.

Commute Trip Reduction

The intent of the CTR law is to reduce traffic congestion, air pollution, and energy use. It requires major employers to implement programs to reduce the number of employees who drive alone to work.
Read more

2017 State Agency Commute Trip Reduction Report to the Legislature

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 Have more than 100 full-time employees?


You may be affected by the CTR law. Find out more here!