Section 36-9-624 - Waiver(a) A debtor or secondary obligor may waive the right to notification of disposition of collateral under Section 36-9-611 only by an agreement to that effect entered into and authenticated after default.(b) A debtor may waive the right to require disposition of collateral under Section 36-9-620(e) only by an agreement to that effect entered into and authenticated after default.(c) Except in a consumer-goods transaction, a debtor or secondary obligor may waive the right to redeem collateral under Section 36-9-623 only by an agreement to that effect entered into and authenticated after default.2001 Act No. 67, Section 12.