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   <concept id="DFARS_PGI_PGI_213.302-3"
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      <title class="- topic/title ">
         <ph props="autonumber" class="- topic/ph ">PGI 213.302-3</ph> Obtaining contractor acceptance and modifying purchase orders.</title>
      <conbody class="- topic/body  concept/conbody ">
         <p class="- topic/p ">Generally, use unilateral modifications (see FAR 43.103) for— </p>
         <p outputclass="List2" class="- topic/p ">(1) No-cost amended shipping instructions if—</p>
         <p outputclass="List3" class="- topic/p ">(i) The amended shipping instructions modify a unilateral purchase order; and</p>
         <p outputclass="List3" class="- topic/p ">(ii) The contractor agrees orally or in writing; and </p>
         <p outputclass="List2" class="- topic/p ">(2) Any change made before work begins if—</p>
         <p outputclass="List3" class="- topic/p ">(i) The change is within the scope of the original order;</p>
         <p outputclass="List3" class="- topic/p ">(ii) The contractor agrees;</p>
         <p outputclass="List3" class="- topic/p ">(iii) The modification references the contractor’s oral or written agreement; and</p>
         <p outputclass="List3" class="- topic/p ">(iv) Block 13D of Standard Form 30, Amendment of Solicitation/Modification of Contract, is annotated to reflect the authority for issuance of the modification.</p>
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