(1) In this chapter:
"vocational rehabilitation", for the injured worker, means—
(a) the assessment of the needs of the worker for paragraph (b); and
(b) the provision of appropriate, adequate and timely services for the worker aimed at maintaining the worker in suitable employment or returning the worker to suitable employment.
(2) For the definition of "vocational rehabilitation", services are taken to be appropriate, adequate and timely if they are in accordance with a relevant protocol.