It shall be the duty of the Office of Rail and Road, so far as it appears to it practicable from time to time to do so—
The Secretary of State may give general directions indicating—
It shall be the duty of the Office of Rail and Road, where either it considers it expedient or it is requested by the Secretary of State or the CMA to do so, to give information, advice and assistance to the Secretary of State or the CMA with respect to any matter in respect of which any function of the Office of Rail and Road under this Part is exercisable.
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