Section 810 ILCS 5/9-310 - When filing required to perfect security interest or agricultural lien; security interests and agricultural liens to which filing provisions do not apply(a) General rule: perfection by filing. Except as otherwise provided in subsection (b) and Section 9-312(b), a financing statement must be filed to perfect all security interests and agricultural liens. (b) Exceptions: filing not necessary. The filing of a financing statement is not necessary to perfect a security interest: (1) that is perfected under Section 9-308(d), (e), (f), or (g); (2) that is perfected under Section 9-309 when it attaches; (3) in property subject to a statute, regulation, or treaty described in Section 9-311(a); (4) in goods in possession of a bailee which is perfected under Section 9-312(d)(1) or (2); (5) in certificated securities, documents, goods, or instruments which is perfected without filing , control, or possession under Section 9-312(e), (f), or (g); (6) in collateral in the secured party's possession under Section 9-313; (7) in a certificated security which is perfected by delivery of the security certificate to the secured party under Section 9-313; (8) in deposit accounts, electronic chattel paper, electronic documents, investment property, letter-of-credit rights, or beneficial interests in Illinois land trusts which is perfected by control under Section 9-314; (9) in proceeds which is perfected under Section 9-315; or (10) that is perfected under Section 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. Amended by P.A. 095-0895,§ 20, eff. 1/1/2009.Laws 1961, p. 2101; 91-893, eff. 7-1-01; 92-234, eff. 1-1-02.