Conn. Gen. Stat. § 42a-9-406

(b) Subject to subsection (h) of this section, notification is ineffective under subsection (a) of this section:

(1) If it does not reasonably identify the rights assigned;

(2) To the extent that an agreement between an account debtor and a seller of a payment intangible limits the account debtor's duty to pay a person other than the seller and the limitation is effective under law other than this article; or

(3) At the option of an account debtor, if the notification notifies the account debtor to make less than the full amount of any installment or other periodic payment to the assignee, even if:

(A) Only a portion of the account, chattel paper or payment intangible has been assigned to that assignee;

(B) A portion has been assigned to another assignee; or

(C) The account debtor knows that the assignment to that assignee is limited.

(c) Subject to subsection (h) of this section, if requested by the account debtor, an assignee shall seasonably furnish reasonable proof that the assignment has been made. Unless the assignee complies, the account debtor may discharge its obligation by paying the assignor, even if the account debtor has received a notification under subsection (a) of this section.

(d) Except as otherwise provided in subsection (e) of this section and in sections 42a-2A-403 and 42a-9-407 , and subject to subsection (h) of this section, a term in an agreement between an account debtor and an assignor or in a promissory note is ineffective to the extent that it:

(1) Prohibits, restricts or requires the consent of the account debtor or person obligated on the promissory note to the assignment or transfer of, or the creation, attachment, perfection or enforcement of a security interest in, the account, chattel paper, payment intangible or promissory note; or

(2) Provides that the assignment or transfer or the creation, attachment, perfection or enforcement of the security interest may give rise to a default, breach, right of recoupment, claim, defense, termination, right of termination or remedy under the account, chattel paper, payment intangible or promissory note.

(e) Subsection (d) of this section does not apply to the sale of a payment intangible or promissory note, other than a sale pursuant to a disposition under section 42a-9-610 or an acceptance of collateral under section 42a-9-620 .

(f) Except as otherwise provided in sections 42a-2A-403 and 42a-9-407 , and subject to subsections (h) and (i) of this section, a rule of law, statute or regulation that prohibits, restricts or requires the consent of a government, governmental body or official or account debtor to the assignment or transfer of, or creation of a security interest in, an account or chattel paper is ineffective to the extent that the rule of law, statute or regulation:

(1) Prohibits, restricts or requires the consent of the government, governmental body or official or account debtor to the assignment or transfer of, or the creation, attachment, perfection or enforcement of a security interest in the account or chattel paper; or

(2) Provides that the assignment or transfer or the creation, attachment, perfection or enforcement of the security interest may give rise to a default, breach, right of recoupment, claim, defense, termination, right of termination or remedy under the account or chattel paper.

(g) Subject to subsection (h) of this section, an account debtor may not waive or vary its option under subdivision (3) of subsection (b) of this section.

(h) This section is subject to law other than this article which establishes a different rule for an account debtor who is an individual and who incurred the obligation primarily for personal, family or household purposes.
nt or chattel paper.

(g) Subject to subsection (h) of this section, an account debtor may not waive or vary its option under subdivision (3) of subsection (b) of this section.

(h) This section is subject to law other than this article which establishes a different rule for an account debtor who is an individual and who incurred the obligation primarily for personal, family or household purposes.

(i) Except as provided in subsection (j) of this section, this section prevails over any inconsistent provision of any statute or regulation of this state unless the provision is contained in a statute of this state, refers expressly to this section and states that the provision prevails over this section.

(j) (1) This section does not apply to:

(A) An assignment of a health-care-insurance receivable;

(B) An assignment or transfer of or creation of a security interest in:

(i) A claim or right to receive compensation for injuries or sickness as described in 26 USC 104(a)(1) or (2), as amended from time to time, or

(ii) A claim or right to receive benefits under a special needs trust as described in 42 USC 1396p(d)(4), as amended from time to time.

(2) Subsection (f) of this section does not apply to an assignment or transfer of, or the creation, attachment, perfection or enforcement of a security interest in, a right the transfer of which is prohibited or restricted by any of the following statutes to the extent that the statute is inconsistent with said subsection: Section 12-831 , 31-320 or 52-225f .

Section clearly states that the duty placed upon an account debtor to discharge its debt by paying the assignee, as opposed to the assignor, hinges on “the amount due or to become due” being assigned, and the phrase “due or to become due” makes clear that, for the “assignee” to become the party to whom payment must be made, the amount of that payment—which is either currently due, or will become due in the future—is what must be assigned to the “assignee”. 197 CA 373.