CHAPTER IISYSTEM DEFENCE PLAN
SECTION 1 General provisions
Article 12Implementation of the system defence plan
1.
By 18 December 2019 each TSO shall implement those measures of its system defence plan that are to be implemented on the transmission system. It shall maintain the implemented measures henceforth.
2.
By 18 December 2018 each TSO shall notify the transmission connected DSOs of the measures, including the deadlines for implementation, which are to be implemented on:
(a)
the DSO's installations pursuant to Article 11(4); or
(b)
the installations of SGUs identified pursuant to Article 11(4) connected to their distribution systems; or
(c)
the installations of defence service providers connected to their distribution systems; or
(d)
the installations of DSOs connected to their distribution systems.
3.
By 18 December 2018 each TSO shall notify the SGUs identified pursuant to point (c) of Article 11(4) or the defence service providers directly connected to its transmission system of the measures which are to be implemented on their installations, including the deadlines for the implementation.
4.
When provided for in national legislation, the TSO shall notify directly SGUs identified pursuant to point (c) of Article 11(4), defence service providers or DSOs connected to distribution systems of the measures which are to be implemented on their installations, including the deadlines for their implementation. It shall inform the concerned DSO of this notification.
5.
Where a TSO notifies a DSO in accordance with paragraph 2, the DSO shall notify in turn, without delay, the SGUs, the defence service providers and the DSOs connected to its distribution system of the measures of the system defence plan that they have to implement on their respective installations, including the deadlines for their implementation.
6.
Each notified DSO, SGU and defence service provider shall:
(a)
implement the measures notified pursuant to this Article no later than 12 months from the date of notification;
(b)
confirm the implementation of the measures to the notifying system operator, who shall, when different from the TSO, notify the confirmation to the TSO; and
(c)
maintain the measures implemented on its installations.