No you don’t, not in this area.
The burn ban would be a yard cleanup pain in the rear, not a forest fire issue.
Have to disagree Hair ... we have been quite lucky to avoid a major forest fire on this side of the mountains. Living up on Tiger, I can tell you a LOT of effort goes into keeping fuel (branches, leaves, etc) cleaned up on our property. Come August, if we still have fuel on the ground, it would take very little (a housefire) to ignite the entire side of a mountain.
They're going to take another look at it this fall - that should give Olympia time to pass a bill outlawing trimming your bushes and picking up windfall...expect it right around the 3rd week of November.
I've been on the BS clean air agency's email list for over a year, and it was one of the deciding factors in moving to Skagit county
http://www.pscleanair.org/news/newsroom/releases/2008/02_29_08_BOD_ruling.aspx