Vehicles required to be registered with the Department of Licensing (DOL) must display license plates or decals assigned by DOL. License plates must be:
The Washington State Patrol may grant exceptions to license plate display requirements if the body construction of the vehicle makes compliance impossible.
It is an unlawful to use a license plate holder, frame, or other material that changes, alters, or makes a license plate or plates illegible, with a base penalty of $93 for such unlawful use.
License plates must be kept uncovered to be plainly seen and read at all times. It is unlawful to use any material that conceals, obstructs, or distorts the legibility of the license plate.
Until January 1, 2025, the penalty for using a license plate cover is only a written warning, which must include information about the new license plate display requirements and the applicable penalty.