For the purposes of this chapter, "as soon as is practicable" means as soon as it is both possible and practical to provide notice, taking into account all of the facts and circumstances in the individual situation. When an employee becomes aware of a need for paid family or medical leave less than thirty days in advance, the determination of when an employee could practicably provide notice must take into account the individual facts and circumstances.
Wash. Admin. Code § 192-600-015