(1) The department may inspect and audit employer files and records as needed to ensure compliance with Title 50B RCW. Audits may take place at the discretion of the department.

(2) Employers must provide all requested information to the department within 10 business days or a time frame agreed to by the department.

(3) If the department discovers violations for the time frame being audited, the department may expand the audit to include prior and subsequent quarters, up to the most recently completed calendar quarter.