(1) Per RCW 66.44.290, an in-house controlled purchase program is a program that allows retail liquor licensees to use eighteen, nineteen, or twenty year old persons to attempt to purchase alcohol for the purpose of evaluating the licensee's training program regarding the sale of liquor to persons under twenty-one years of age.

(2) The licensee's controlled purchase program must meet the requirements of RCW 66.44.290, WAC 314-21-015, and 314-21-025.

(3) Per RCW 66.44.290, violations occurring under an in-house controlled purchase program may not be used for criminal prosecution or administrative action by the liquor control board.