The relevant authority may give directions authorising Health Authorities to vary pilot schemes (otherwise than in response to directions given under subsection (2)) in such circumstances, and subject to such conditions, as may be specified in the directions.

The relevant authority may by directions require a pilot scheme to be varied by the Health Authority concerned in accordance with the directions.

If satisfied that a pilot scheme is (for any reason) unsatisfactory, the relevant authority may give directions to the Health Authority concerned requiring them to bring the scheme to an end in accordance with the terms of the directions.