Article 4 Maintenance of authorised developmentI1

National Grid may at any time maintain the authorised development (excluding the NPG Works and the NGN Works), except to the extent that this Order or an agreement made under this Order provides otherwise.

NPG may at any time maintain the NPG Works, except to the extent that this Order, or an agreement made under this Order, provides otherwise.

NGN may at any time maintain the NGN Works, except to the extent that this Order, or an agreement made under this Order, provides otherwise.