This paragraph applies, in relation to a relevant undertaker, to the powers conferred on it in relation to streets by sections 158, 161 and 162 of this Act.

Any dispute as to whether compensation should be paid under sub-paragraph (2) above, or as to the amount of any such compensation, shall be referred to the arbitration of a single arbitrator appointed by agreement between the parties to the dispute or, in default of agreement, by the F1the Authority.

Until the coming into force of Part III of the M1New Roads and Street Works Act 1991, a payment of compensation under this paragraph shall be treated for the purposes of section 32 of the M2Public Utilities Street Works Act 1950 (provisions against duplication of compensation) as made under an enactment passed before that Act of 1950; but nothing in this sub-paragraph shall be taken to prejudice the power of the Secretary of State under that Act of 1991 to make an order bringing Part III of that Act into force on different days for different purposes (including the purposes of this paragraph).