世行采购指南的规定:2.59
The Borrower shall award the contract, within the period of the validity of
bids, to the bidder who meets the appropriate standards of capability and
resources and whose bid has been determined (i) to be substantially responsive
to the bidding documents and (ii) to offer
the lowest evaluated cost. A bidder
shall not be required, as a condition of award, to undertake responsibilities
for work not stipulated in the bidding documents or otherwise to modify the bid
as originally submitted.
FIDIC招标程序的规定:The employer should then make his decision on which tender
to accept. Unless there are exceptional circumstances, the award should
be made to the tenderer submitting the lowest evaluated responsive tender.