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l..07 <br />for each unit price which has not previously been <br />establis h ed, with sufficient substantiating data to <br />allow Engineer to evaluate the quotation. <br />B. On request, provide additional data to support time <br />and cost computation including the following: <br />1. Labor required. <br />2. Equipment required. <br />3 . Products required. a. Recommended source of purchase and unit <br />cost. <br />b. Quantities required. <br />4. Taxes, insurance bonds. <br />5. credit for work deleted from Contr:act, <br />similarly documented. <br />6. overhead and profit. <br />7. Justification for any change in Contract Time. <br />c. Support each claim for additional costs, and for <br />work done on a time-and-material/force account <br />basis, with documentation as r:equir:ed for: a lump <br />sum proposal, plus the following additional <br />information: <br />1. Name of the owner:'s authorization agent who <br />ordered the work, and date of the order. <br />2. Dates and times work performed, and by whom. <br />3. Time record, summary of hours worked, and <br />hourly rates paid. <br />4. Receipts and invoices for: <br />a. Equipment used, listing dates and times <br />of use. <br />b. Products used, listing quantities. <br />c . Subcontracts, <br />D. Document requests for substitutions !or Products as <br />specified in Section 01600. <br />PREPARATION OF CHANGE ORDERS <br />A. Engineer will prepare each Change Order. <br />B. Form: Change Order format provided in the Contract <br />Documents. C. Change Order will describe changes in the Work, <br />both additions and deletions, with attachments of <br />revised contract Documents to define details of <br />change. D. Change order will prov id<' an accounting of the <br />adjustment in the contract sum and in the contract <br />Time. <br />0115)-J