Does the shoulder belt need to be over the shoulder if the lap seat belt is buckled in the State of Washington?

Yes, in the State of Washington, the shoulder belt must be worn over the shoulder, even if the lap seat belt is buckled. Proper seat belt use is essential for safety, as the shoulder belt helps to distribute force during a collision and reduces the risk of injury. Failure to wear the shoulder belt correctly can result in violations of safety laws and increased risk of harm in an accident.