(1) A vocational rehabilitation provider must maintain adequate documentation in claimant-specific files to verify the level, type, and extent of the vocational rehabilitation services provided to and on behalf of industrially injured or ill workers.

(2) A vocational rehabilitation provider who requests payment from the department or self-insured employer for vocational rehabilitation services must maintain all records necessary for the director's authorized auditors to audit the provision of services. Providers need to keep all records necessary to disclose the specific nature and extent of all services provided for an industrially injured or ill worker, along with the amounts billed to the department, for those services. Records must be maintained for audit purposes for a minimum of five years from the date of closure by the provider, or, in the case of Option 2 vocational services, for a minimum of five years from the last date of service.