Maryland § 9-314

§ 9-314.

    (a)    A security interest in investment property, deposit accounts, letter-of-credit rights, electronic chattel paper, or electronic documents may be perfected by control of the collateral under § 7-106, § 9-104, § 9-105, § 9-106, or § 9-107.

    (b)    A security interest in deposit accounts, electronic chattel paper, letter-of-credit rights, or electronic documents is perfected by control under § 7-106, § 9-104, § 9-105, or § 9-107 when the secured party obtains control and remains perfected by control only while the secured party retains control.

    (c)    A security interest in investment property is perfected by control under § 9-106 from the time the secured party obtains control and remains perfected by control until:

        (1)    The secured party does not have control; and

        (2)    One of the following occurs:

            (A)    If the collateral is a certificated security, the debtor has or acquires possession of the security certificate;

            (B)    If the collateral is an uncertificated security, the issuer has registered or registers the debtor as the registered owner; or

            (C)    If the collateral is a security entitlement, the debtor is or becomes the entitlement holder.