Waiver.

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 authenticated after default. 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 authenticated after default. 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 authenticated after default. 2. Waiver. This section is a limited exception to Section 9-602, which generally prohibits waiver by debtors and obligors. It makes no provision for waiver of the rule prohibiting a secured party from buying at its own private disposition. Transactions of this kind are equivalent to “strict foreclosures” and are governed by Sections 9-620, 9-621, and 9-622. 1. Source. Former Sections 9-504(3), 9-505, 9-506.