Allow withdrawal of bid if error is made: Public agencies should generally allow a contractor who has made a mistake to withdraw their bid. It is not in either the contractor's or the public agency's best interest to enter into a contract in which the contractor will loose money.
Request bid prices in numbers only: Public agencies should also not require bid prices in words, but only numbers. It's a way to make the bid process simpler and eliminate yet another area for non-responsiveness and ambiguity. In the event you can't read a contractor's bid price in numbers, language in your bid documents allowing rejection of the bid as non-responsive can resolve the lack of clarity in the bid amount.
Click here to read Mr. DeVries brief blog post on this court case.
Mike Purdy's Public Contracting Blog
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