Paragraph 10
Where in consequence of the proposed construction of any of the authorised works, Network Rail or a specified undertaker requires the removal of apparatus under paragraph 4(2) or 6(4) or makes requirements for the protection or alteration of apparatus under paragraph 5, Network Rail shall use its reasonable endeavours to co-ordinate the execution of the works in the interests of safety and the efficient and economic execution of the authorised works and each specified undertaker shall use its best endeavours to co-operate with Network Rail for that purpose.