Section 12A:9-340 - Effectiveness of right of recoupment or set-off against deposit account(a) Exercise of recoupment or set-off. Except as otherwise provided in subsection (c), a bank with which a deposit account is maintained may exercise any right of recoupment or set-off against a secured party that holds a security interest in the deposit account.(b) Recoupment or set-off not affected by security interest. Except as otherwise provided in subsection (c), the application of this chapter to a security interest in a deposit account does not affect a right of recoupment or set-off of the secured party as to a deposit account maintained with the secured party.(c) When set-off ineffective. The exercise by a bank of a set-off against a deposit account is ineffective against a secured party that holds a security interest in the deposit account which is perfected by control under 12A:9-104 (a) (3), if the set-off is based on a claim against the debtor.Enacted c. 117, s. 1, eff. 6/26/2001, op. 7/1/2001; amended c. 386, s. 55, eff. 1/8/2002. P.L. 2001, c. 386, s. 127 provides: "This act, P.L. 2001, c. 386, amends and supplements P.L. 2001, c. 117 and shall take effect immediately and shall be applied retroactively to July 1, 2001."