Section 810 ILCS 5/9-624 - Waiver(a) Waiver of disposition notification. A debtor or secondary obligor may waive the right to notification of disposition of collateral under Section 9-611 only by an agreement to that effect entered into and authenticated after default.(b) Waiver of mandatory disposition. A debtor may waive the right to require disposition of collateral under Section 9-620(e) only by an agreement to that effect entered into and authenticated after default.(c) Waiver of redemption right. A debtor or secondary obligor may waive the right to redeem collateral under Section 9-623 only by an agreement to that effect entered into and authenticated after default. P.A. 91-893, eff. 7/1/2001.