RCW 46.18.290

A registered owner may apply to the department, county auditor or other agent, or subagent appointed by the director for a square dancer license plate. The registered owner shall pay the special license plate fee required under *RCW 46.17.220(27), in addition to any other fee or tax required by law. The square dancer license plate may be issued in lieu of standard issue or personalized license plates for motor vehicles required to display one or two license plates, but may not be issued for vehicles registered under chapter 46.87 RCW.