Conn. Gen. Stat. § 42a-9-512: Amendment of financing statement.

(a) Subject to section 42a-9-509, a person may add or delete collateral covered by, continue or terminate the effectiveness of, or, subject to subsection (e), otherwise amend the information provided in, a financing statement by filing an amendment that:

(1) Identifies, by its file number, the initial financing statement to which the amendment relates; or

(2) If the amendment relates to an initial financing statement recorded in a filing office described in subdivision (1) of subsection (a) of section 42a-9-501, identifies the initial financing statement to which the amendment relates by book and page number on which or the date and time that the initial financing statement was recorded.

(b) Except as otherwise provided in section 42a-9-515, the filing of an amendment does not extend the period of effectiveness of the financing statement.

(c) A financing statement that is amended by an amendment that adds collateral is effective as to the added collateral only from the date of the filing of the amendment.

(d) A financing statement that is amended by an amendment that adds a debtor is effective as to the added debtor only from the date of the filing of the amendment.

(e) An amendment is ineffective to the extent it:

(1) Purports to delete all debtors and fails to provide the name of a debtor to be covered by the financing statement; or

(2) Purports to delete all secured parties of record and fails to provide the name of a new secured party of record.