Section 28:9-624 - Waiver(a) A debtor or secondary obligor may waive the right to notification of disposition of collateral under § 28:9-611 only by an agreement to that effect entered into and signed after default.(b) A debtor may waive the right to require disposition of collateral under § 28:9-620(e) only by an agreement to that effect entered into and signed after default.(c) Except in a consumer-goods transaction, a debtor or secondary obligor may waive the right to redeem collateral under § 28:9-623 only by an agreement to that effect entered into and signed after default.Amended by D.C. Law 25-158,§ 2, 71 DCR 002265, eff. 4/20/2024.Oct. 26, 2000, D.C. Law 13-201, § 101, 47 DCR 7576.