11 M.R.S. §9-1501: Filing office

(1). Except as otherwise provided in subsection (2), 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:

(a). The registry of deeds for the county in which the related real property is located, if:

(i) The collateral is as-extracted collateral or timber to be cut; or

(ii) The financing statement is recorded as a fixture filing and the collateral is goods that are or are to become fixtures; or

(b). 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.

(2). 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 that is or is to become fixtures.