WAC 296-131-020
WAC 296-131-020. Meals and rest periods
(1) Every employee employed more than five hours shall receive a meal period of at least thirty minutes. Employees working eleven or more hours in a day shall be allowed at least one additional thirty-minute meal period.
(2) Every employee shall be allowed a rest period of at least ten minutes, on the employer's time, in each four-hour period of employment. For purposes of computing the minimum wage on a piecework basis, the time allotted an employee for rest periods shall be included in the number of hours for which the minimum wage must be paid.