WAC 357-46-025
WAC 357-46-025. How much layoff notice must employers give employees?
(1) Probationary employees being separated due to layoff must receive at least one calendar day's notice. (See WAC 357-46-185 )
(2) Permanent employees being laid off must receive at least fifteen calendar days' notice unless the employer and employee agree to waive the fifteen day notice period.