(a) General Rule for Perfection by Filing. - Except as otherwise provided in subsection (b) of this section and G.S. 25-9-312(b), a financing statement must be filed to perfect all security interests and agricultural liens.
(b) Exceptions When Filing Not Necessary. - The filing of a financing statement is not necessary to perfect any of the following security interests:
(1) A security interest that is perfected under G.S. 25-9-308(d), (e), (f), or (g).
(2) A security interest that is perfected under G.S. 25-9-309 when it attaches.
(3) A security interest in property subject to a statute, regulation, or treaty described in G.S. 25-9-311(a).
(4) A security interest in goods in possession of a bailee that is perfected under G.S. 25-9-312(d)(1) or (2).
(5) A security interest in certificated securities, documents, goods, or instruments that is perfected without filing, control, or possession under G.S. 25-9-312(e), (f), or (g).
(6) A security interest in collateral in the secured party's possession under G.S. 25-9-313.
(7) A security interest in a certificated security that is perfected by delivery of the security certificate to the secured party under G.S. 25-9-313.
(8) A security interest in controllable accounts, controllable electronic records, controllable payment intangibles, deposit accounts, electronic documents, investment property, or letter-of-credit rights that is perfected by control under G.S. 25-9-314.
(8a) A security interest in chattel paper that is perfected by possession and control under G.S. 25-9-314.1.
(9) A security interest in proceeds that is perfected under G.S. 25-9-315.
(10) A security interest that is perfected under G.S. 25-9-316.
(c) Assignment of Perfected Security Interest. - If a secured party assigns a perfected security interest or agricultural lien, a filing under this Article is not required to continue the perfected status of the security interest against creditors of and transferees from the original debtor.