What is the Washington State Commute Trip Reduction (CTR) law?

The Washington State Commute Trip Reduction (CTR) law is a state mandate requiring affected employers with 100 or more employees who work at a single worksite to develop and implement a program to reduce single-occupancy vehicle trips during peak commuting hours. 


Puget Sound’s I-5 is one of the nation’s worst congestion points causing issues for the environment, commuters, and employers. To solve these issues, the Washington State legislature adopted the Commute Trip Reduction law which is now also part of Washington’s Clean Air act. 


The CTR goal is to reduce statewide air pollution from greenhouse gas emissions through a commute trip reduction program where use of single-occupant vehicles is less, favoring alternative modes of travel. 

Show All Answers

1. What is an Employee Transaction Coordinator (ETC)?
2. What is the Washington State Commute Trip Reduction (CTR) law?
3. What are the benefits of CTR?