Section 65

not less than twenty-eight days before commencing any alteration, the Board or other person desiring to make the same (hereinafter in this section referred to as "the operator") shall serve upon the person for the time being entitled to the pipe, wire, electric supply lines, or works, as the case may be (hereinafter in this section referred to as "the owner") a notice in writing, describing the proposed alteration, together with a section and plan thereof on a scale sufficiently large to show clearly the details of the proposed works, and not in any case smaller than 1:100 vertically, and 1:4000 horizontally, and intimating the time when it is to be commenced, and shall subsequently give such further information in relation thereto as the owner may desire;

within fourteen days after the service of the notice, section and plan upon the owner, the owner may serve upon the operator a requisition to the effect that any question arising upon the notice, section or plan shall be determined by arbitration, and thereupon the matter shall, unless settled by agreement, be determined by arbitration;

every arbitrator to whom a reference is made under paragraph (b) shall have regard to any duties or obligations which the owner is under, and may require the operator to execute any temporary or other works so as to avoid, as far as possible, interference therewith;

any pipe the Board be or wire the Board's alter the ks of the id, if such rfere with him.

wing proent to the 1, apply, fore com or other hereinafter operator") time being apply lines, hereafter in " a notice alteration, ereof on a the details any case id 1:4000 when it is quently give thereto as ice is made guard to any er is under, execute any avoid, as far vice of the owner, the a requisirising upon determined matter shall, ermined by

where no requisition is served upon the operator under paragraph (b) within the time named, or where such a requisition has been served and the matter has been settled by agreement or determined by arbitration, the alteration may upon payment or securing of any compensation accepted or determined by agreement or arbitration, be executed in accordance with the notice, section and plan and subject to such modifications as may have been determined by arbitration or agreed upon between the parties;

the owner may, at any time before the operator is entitled to commence the alteration, serve upon the operator a statement in writing to the effect that he desires to execute the alteration himself and that he requires the operator to give such security for the repayment of any expenses as may be agreed upon or, in default of agreement, determined by arbitration;

where a statement is served upon the operator under paragraph (e), he shall, not less than forty-eight hours before the execution of the alteration is required to be commenced furnish such security and serve upon the owner a notice in writing intimating the time when the alteration is to be commenced, and the manner in which it is to be made and thereupon the owner may proceed to execute the alteration as required by the operator;

where the owner declines to comply, or does not within the time and in the manner prescribed by a notice served upon him under paragraph (f), comply with the notice, the operator may himself execute the alteration;

all expenses properly incurred by the owner in complying with a notice served upon him by the operator under paragraph (f) may be recovered by him from the operator.