In order to receive this pass, truck owners have to demonstrate they are in the process of complying with the standard through, by purchasing a compliant truck or the installation of a retrofit to reduce their truck's emissions to an equivalent level. The application for this pass will be available by March 1 on the NWSA website.

The Managing Members informed that the 2007 engine model standard will remain in place until at least 2025.

Below you can see how the Clean Truck Program will work, starting from April 1:

  • Seattle: Trucks entering Seattle container terminals must have a valid RFID tag. RFID tags will only work for trucks with a 2007 or newer engine. RFID tags for trucks not meeting the 2007 engine or newer standard will be turned away unless the driver has an approved pass. Contact eModal at 866-758-3838 or visit to apply for a tag.
  • Tacoma: Trucks entering Tacoma container terminals must have a green Clean Truck Program sticker. Trucks with existing yellow stickers will be turned away unless they have an approved pass. Register online here.

From the Fall of 2018, all trucks entering NWSA international container terminals in both Seattle and Tacoma must require a valid RFID tag and clean truck stickers will no longer be used.

In 2008, the ports of Tacoma, Seattle and Vancouver, B.C., adopted the Northwest Ports Clean Air Strategy, to have 100% of the drayage trucks serving container terminals with cleaner diesel technology, a 2007 engine with diesel particulate filter or equivalent by January 1, 2018.