For higher education employees, the seniority date is determined in accordance with the employer's layoff procedure. The employer's layoff procedure must specify a uniform method for determining the seniority date for employees of the higher education institution or related board who are covered by the civil service rules. Seniority dates will not be adjusted for any time period an employee is on approved leave without pay for reasons defined in WAC 357-46-053.
Wash. Admin. Code § 357-01-304