Control areas
5. The Secretary of State may from time to time—
(a)give written notice to any train operator designating all or any through trains as control areas while they are within any area in England or Wales specified in the notice or while they constitute a control zone;
(b)give written notice to the Concessionaires designating as a control area any part of the tunnel system in England;
(c)give written notice to any occupier or person concerned with the management of—
(i)a terminal control point in England or Wales, or
(ii)a place in England or Wales which is a customs approved area within the meaning of the Channel Tunnel (Customs and Excise) Order 1990(1),
designating that terminal control point or that place as a control area.