III-5 CONNECTIONS INTO UTILITY SYSTEMS AND CLOSING STREETS - AIT operations ofthe Contractor requiring connec- tion Into or disconnection from the existing utility distribution or collection systems, fire alarm or other alarm systems or closing of streets shall be performed in accordance with instructions obtained from the Contracting Officer. W JII-6 ORK: REQUIREMENTS FOR SUNDAY, HOLIDAY AND NIGHT a. The Contractor shall furnish sufficient forces, construction plant and equipment, and shall work such hours, including night shifts, overtime operations and Sunday and holiday work, as may be necessary to inSure prosecution of the work in accordance with the approved progress schedule. If, in the opinion of the Contracting Officer, the Contractor falls behind the progress schedule, the Contractor shall take such steps as may be necessary to improve his progress and the Contracting Officer may require him to increase the number of shifts, and/or overtime operations, day or work and/or the amount of construction plant. b. Fallure of the Contractor to supply the requirements of the Contracting Officer under this provision shall be grounds for determination by the Contracting Officer that the Contractor is not prosecuting the work with such diligence as will insure completion within the time specified. Upon such determination, the Contracting Officer may terminate the Contractor's right to proceed with the work or any separable part thereof, in accordance with the termination Article of the contract. IIz-7 SUSPENSION OF W@RK - The Contracting Officer may order the Contractor to suspend all or any part of the work for such period of time as may be determined by him to be necessary or desirable for the convenience of the Government. Unless such suspension unreasonably delays the progress of the work and causes additional expense or loss to the Contractor, no increase in contract price will be allowed. In the case of suspension of all or any part of the work for an unreasonable length of time causing additional expense or loss, not due to the fault or negligence of the Contractor, the Contracting Officer shall make an equitable adjustment in the contract price and modify the contract accordingly. An equitable extension of time for the completion of the work in the event of any such suspension will be allowed the Contractor, provided, however, that the suspension was not due to the fault or negligence of the Contractor. GC-5