...Contractor has reason to believe that the total costs to the Government, exclusive of any fixed fee, for the performance of this contract will be substantially greater or less than the estimated costs then in effect under this contract, the Contractor shall promptly notify the Contracting...

...the estimated total cost to the Government and to the Contractor then set forth In tte Schedule, or If at any time the Contractor has reason to believe that the total cost for the performance of this contract will be substantially greater or less than the then estimated...

...will exceed seventy-five per centum (75%) of the estimated cost then set forth in the Schedule, or If at any- time, the Contractor has reason to believe that the total .-rfi.-, cost to the Government for the performance of this contract will be substantially greater...

...through fault of the Government, shall not be deducted from gross costs. (c) Total cost. It Is estimated that the total cost to the Government for the performance of this contract shall not exceed the celling price set forth in the Schedule and the Contractor agrees to use its best...

...the amount then set forth In the Schedule as the estimated cost for the reimbursable elements, or. If at any time the Contractor has reason to believe that the total of such reimbursable costs will be substantially greater or less than the amount then set forth In...

...the amount then set forth in the Schedule as the estimated cost for the reimbursable elements, or, if at any time the Contractor has reason to believe that the total of such reimbursable costs will be substantially greater or less than the amount then set forth in...

...the amount then set forth in the Schedule as the estimated cost for the reimbursable elements, or, if at any time the Contractor has reason to believe that the total of such reimbursable costs will be substantially greater or less than the amount then set forth In...

...Incurred, will exceed seventy-five percent (75%) of the estimated cost then set forth In the Schedule, or if at any time, the Contractor has reason to believe that the total coet to the Government, exclusive of any fixed fee, for the performance of this contract will be substantially...

...exceed seventy-five percent (75%) of the estimated cost set forth in the contract, or, if at anytime the Contractor has reason to believe that the total cost to the Government, exclusive of any fixedfee, for the performance of this contract, will be substantially greater or less...