WAC 230-10-070
WAC 230-10-070. Bingo flashboard required
(1) Bingo licensees with gross gambling receipts over one hundred fifty thousand dollars in their previous license year must use flashboards to display numbers. The flashboards must be visible to all players and clearly indicate all numbers that have been called; and
(2) If a flashboard malfunctions, licensees must repair it before using it in any other bingo occasion.