(1) In accordance with chapter 74.34 RCW, all providers, entity representatives, resident managers, owners, caregivers, staff, and students that provide care and services to residents, are mandated reporters and must immediately report to the department when there is:

(a) A reasonable cause to believe that abandonment, abuse, exploitation, financial exploitation, or neglect of a vulnerable adult has occurred; or

(b) A reason to suspect that sexual assault of a vulnerable adult has occurred.

(2) Reports must be made to:

(a) The centralized toll free telephone number provided by the department; and

(b) The appropriate law enforcement agencies, as required under chapter 74.34 RCW.