While KEYS has tried to anticipate all Work required under and during the term of this contract, the parties understand and agree that the Work required herein may require without notice to Contractor, the performance of extra work or the omission of work previously required. KEYS may at any time and without notice to Contractor, require changes in the scope of work under this contract as KEYS may find necessary or desirable. A. KEYS shall notify Contractor of the change in scope work via Change Order, which shall become part of the contract.. If a Change Order directs Contractor to omit Work, Contractor shall refrain from performing it. B. Contractor shall perform additional only pursuant to the issuance by KEYS of Change Order. Records of any extra work performed by Contractor shall be reviewed daily by Contractor and KEYS, with duplicate copies of accepted records made and signed by both Contractor or his representative and KEYS, and one (1) copy retained by each.
