C.R.S. § 4-9-401

(a) Except as otherwise provided in subsection (b) of this section and sections 4-9-406 , 4-9-407 , 4-9-408 , and 4-9-409 , whether a debtor’s rights in collateral may be voluntarily or involuntarily transferred is governed by law other than this article. (b) An agreement between the debtor and secured party which prohibits a transfer of the debtor’s rights in collateral or makes the transfer a default does not prevent the transfer from taking effect. (c) This section shall not be construed as being inconsistent with criminal sanctions now or hereafter applicable to transactions involving collateral or as justifying any transfer that would otherwise be a violation of law.