Okla. Stat. tit. 12A, § 12A-1-9-602

WAIVER AND VARIANCE OF RIGHTS AND DUTIES

Except as otherwise provided in Section 1-9-624 of this title,

to the extent that they give rights to a debtor or obligor and

impose duties on a secured party, the debtor or obligor may not

waive or vary the rules stated in the following listed sections:

(1) Subparagraph (C) of paragraph (4) of subsection (b) of

Section 1-9-207 of this title, which deals with use and operation of

the collateral by the secured party;

(2) Section 1-9-210 of this title, which deals with requests

for an accounting and requests concerning a list of collateral and

statement of account;

(3) Subsection (c) of Section 1-9-607 of this title, which

deals with collection and enforcement of collateral;

(4) Subsection (a) of Section 1-9-608 of this title and

subsection (c) of Section 1-9-615 of this title to the extent that

they deal with application or payment of noncash proceeds of

collection, enforcement, or disposition;

(5) Subsection (a) of Section 1-9-608 of this title and

subsection (d) of Section 1-9-615 of this title to the extent that

they require accounting for or payment of surplus proceeds of

collateral;

(6) Section 1-9-609 of this title to the extent that it imposes

upon a secured party that takes possession of collateral without

judicial process the duty to do so without breach of the peace;

(7) Subsection (b) of Section 1-9-610 of this title and

Sections 1-9-611, 1-9-613, and 1-9-614 of this title, which deal

with disposition of collateral;

Oklahoma Statutes - Title 12A. Uniform Commercial Code Page 137

(8) Subsection (f) of Section 1-9-615 of this title, which

deals with calculation of a deficiency or surplus when a disposition

is made to the secured party, a person related to the secured party,

or a secondary obligor;

(9) Section 1-9-616 of this title, which deals with explanation

of the calculation of a surplus or deficiency;

(10) Sections 1-9-620, 1-9-621, and 1-9-622 of this title,

which deal with acceptance of collateral in satisfaction of

obligation;

(11) Section 1-9-623 of this title, which deals with redemption

of collateral;

(12) Section 1-9-624 of this title, which deals with

permissible waivers; and

(13) Sections 1-9-625 and 1-9-626 of this title, which deal

with the secured party’s liability for failure to comply with this

article.