The Washington State Senate has approved the clean-car bill!

And, in a fascinating twist, the senators conditioned implementation of the bill on Oregon’s doing the same. That’s a disappointing wrinkle in Washington’s campaign for clean cars, but also an exciting precedent for Cascadian unity. It also ups the pressure on Salem—to which, all eyes turn.

The Seattle Timesreports.

UPDATE: Oregon governor Ted Kulongoski announced yesterday that he would not back Oregon’s clean-car bill. Instead, he’s appointing another advisory group to consider the matter, according to the Oregonian.