Paragraph 24 I1

For the protection of the utility undertakers referred to in this Part of this Schedule (save for National Grid, which is protected by and as defined in Part 1 of this Schedule, WPD, which is protected by and as defined in Part 2 of this Schedule and DCC, which is protected by and as defined in Part 7 of this Schedule), the following provisions have effect, unless otherwise agreed in writing between the undertaker and the utility undertakers concerned.