Bicycles are legally considered "vehicles" on Washington’s roadways. That means bicyclists must obey the rules of the road like drivers of any other vehicle and must be treated as equal users by all other vehicles. The best way to avoid collisions is to be prepared and be aware of other vehicles around you. Avoid common bicyclist errors and common motorist errors committed around bicyclists.
Here are some safety tips for biking in Washington:
Other information on bicycle safety can be found at:
The League of American Bicyclists - http://www.bikeleague.org/programs/education/
The National Highway Traffic Safety Administration - http://www.nhtsa.gov/Bicycles