(1) Whenever an individual files an initial application for unemployment benefits, a notice will be sent to:

(a) The claimant's last employer, and

(b) Any prior employer where it has been less than ten weeks since the job separation or the individual has not earned at least ten times his or her weekly benefit amount since the job separation.

(2) Whenever an individual files an initial application for unemployment benefits and a benefit year is established, the department will send a notice to all base year employers. This notice to base year employers will include information on wages reported and benefit charging related information and will request an employer response if the wage information is incorrect or if the employer wishes to request relief of benefit charging.

(3) Whenever an individual files an initial application for unemployment benefits, the department will send a notice to any separating employer as provided in WAC 192-320-075. This notice will include information that the employer may be liable for all benefits paid on the claim as provided in RCW 50.29.021 (2)(c).

(4) Whenever an individual files an additional claim for benefits (reopens an existing claim after subsequent employment), the department will send a notice to the last employer reported by the claimant and to any prior employer from whom the claimant has a potentially disqualifying separation who has not previously been notified.