Contract Change Orders. All change orders or contract modifications must be approved prior to beginning the work. Contract change orders will be based on either an extension of contract unit prices, an approved contractor estimate, or on a time and materials basis. Change orders will be finalized on a separate Change Order document, approved by City. SWT will verify certified payroll and prevailing wage, as requested by the City to obtain documents. At a minimum, SWT will collect certified payroll from the contractor on a monthly basis and include in the final closeout documents for the project.
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