Sch 11 para 7
(1) If the Secretary of State approves proposals for a pilot scheme under paragraph 3 and notifies NHS England in accordance with that paragraph, NHS England must implement the proposals in accordance with directions given by the Secretary of State. (2) A proposed participant in a pilot scheme (other than NHS England ) may withdraw at any time before the proposals relating to him are implemented. (3) A pilot scheme, as implemented, may differ from the proposals for the scheme approved by the Secretary of State only if he agrees to the variation or— (a) directions given by him (either under sub-paragraph (1) or generally) authorise variations that satisfy specified requirements, and (b) the variation satisfies those requirements. (4) As soon as is reasonably practicable after implementing proposals for a pilot scheme, NHS England must (in accordance with any directions given to it by the Secretary of State) publish details of the scheme.