Paragraph 22 Shared area works
(1)
Before beginning to construct any shared area works, or any part of it, the undertaker must submit to National Grid plans of the relevant shared area works (or part of it) and such further particulars available to it as National Grid Plc may request within 21 days of receipt of the plans reasonably requested.
(2)
Any shared area works must not be constructed except in accordance with such plans as may be approved in writing by National Grid.