The power to give a direction under section 91 above in relation to a scheme shall be exercisable by written notice served by the Secretary of State on the manager and trustee or, as the case may be, on the operator of the scheme and any such notice shall take effect on such date as is specified in the notice.

If the Secretary of State refuses to withdraw or vary a direction on the application of the manager, trustee or operator of the scheme concerned he shall serve that person with a written notice of refusal.

A notice giving a direction, or varying it otherwise than on the application of the manager, trustee or operator concerned, or refusing to withdraw or vary a direction on the application of such a person shall state the reason for which the direction was given or varied or, as the case may be, why the application was refused.

The Secretary of State may give public notice of a direction given by him under section 91 above and of any withdrawal or variation of such a direction; and any such notice may, if the Secretary of State thinks fit, include a statement of the reasons for which the direction was given, withdrawn or varied.