PDFWAC 315-34-060
Drawings.
(1) The Lotto drawing may be held each week on Monday, Wednesday and Saturday. Any increase in the number of drawing days shall require amendment of these rules.
(2) The drawing will be conducted by lottery officials.
(3) Each drawing shall randomly select six winning numbers between 1 and 49. The drawing method shall be tested before and after each drawing. Any drawn numbers are not declared winning numbers until the drawing is certified by the lottery. The winning numbers shall be used in determining all Lotto winners for that drawing. If a drawing is not certified, another drawing will be conducted to determine actual winners.
(4) The drawing shall not be invalidated based on the liability of the lottery.