Section 75-9-501 - Filing office(a) Except as otherwise provided in subsection (b), if the local law of this state governs perfection of a security interest or agricultural lien, the office in which to file a financing statement to perfect the security interest or agricultural lien is: (1) The office designated for the filing or recording of a record of a mortgage on the related real property, if: (A) The collateral is as-extracted collateral or timber to be cut; or(B) The financing statement is filed as a fixture filing and the collateral is goods that are or are to become fixtures; or(2) The Office of the Secretary of State in all other cases, including a case in which the collateral is goods that are or are to become fixtures and the financing statement is not filed as a fixture filing.(b) The office in which to file a financing statement to perfect a security interest in collateral, including fixtures, of a transmitting utility is the Office of the Secretary of State. The financing statement also constitutes a fixture filing as to the collateral indicated in the financing statement which is or is to become fixtures.Former 1972 Code § 75-9-501 [Codes, 1942, § 41A:9-501; Laws, 1966, ch. 316, § 9-501; Laws, 1977, ch. 452, § 32, eff. 4/1/1978] is now found in comparable provisions enacted at §§ 75-9-601 through 75-9-604 by Laws, 2001, ch. 495, § 1. Present § 75-9-501 was derived from former 1972 Code § 75-9-401 [Codes, 1942, § 41A:9-401; Laws, 1966, ch. 316, § 9-401; Laws, 1968, ch. 489, § 1; Laws, 1977, ch. 452, § 24; Laws, 1982, ch. 439; Laws, 1984, ch. 454, § 1; Laws, 1995, ch. 329, § 1, eff. 7/1/1995] and was enacted by Laws, 2001, ch. 495, § 1, eff. 1/1/2002.