44 Ill. Adm. Code 6.230
Mistakes
Section 660
Section 6.230 Mistakes
a) If a bidder claims a mistake in its bid, the bid may be
withdrawn in accordance with this Section without payment of damages to the
Department as provided in the terms of a bid bond or other bid security,
provided the bidder claiming the mistake demonstrates to the CPO with competent
and reliable evidence:
1) that the claimed mistake is related to a material feature of
the contract;
2) that the mistake would have serious, material consequences to
the bidder such that enforcement of a contract would be unconscionable;
3) that the mistake occurred notwithstanding the exercise of
reasonable care by the bidder; and
4) that the bidder has raised the claim of a mistake without
delay in order to prevent the CPO from altering its position in such a manner
that loss to the State would occur.
b) The CPO reserves the right to correct obvious, apparent errors
in bids. A bid may not be withdrawn if a mistake is apparent and the intended
correct bid is clearly evident on the face of the bid. Examples of mistakes
that may be clearly evident on the face of the bid include but are not limited
to typographical errors, errors in extending unit prices, transposition errors,
and arithmetic errors.
c) Mistakes claimed after execution of the contract will not be
corrected.