c. Choice of Law. The choice-of-law rules for the law governing perfection, the effect of perfection or nonperfection, and priority are found in Part 3, Subpart 1 (Sections 9-301 through 9-307 [Maine cite sections 9-1301 to 9-1307]). See also Section 9-316 [Maine cite section 9- 1316].

Where to file: Location of debtor. This Article changes the choice-of-law rule governing perfection (i.e., where to file) for most collateral to the law of the jurisdiction where the debtor is located. See Section 9-301 [Maine cite section 9-1301]. Under former Article 9, the jurisdiction of the debtor's location governed only perfection and priority of a security interest in accounts, general intangibles, mobile goods, and, for purposes of perfection by filing, chattel paper and investment property.

Determining debtor's location. As a baseline rule, Section 9- 307 [Maine cite section 9-1307] follows former Section 9-103, under which the location of the debtor is the debtor's place of business (or chief executive office, if the debtor has more than one place of business). Section 9-307 [Maine cite section 9- 1307] contains three major exceptions. First, a "registered organization," such as a corporation or limited liability company, is located in the State under whose law the debtor is organized, e.g., a corporate debtor's State of incorporation. Second, an individual debtor is located at his or her principal residence. Third, there are special rules for determining the location of the United States and registered organizations organized under the law of the United States.

Location of non-U.S. debtors. If, applying the foregoing rules, a debtor is located in a jurisdiction whose law does not require public notice as a condition of perfection of a nonpossessory security interest, the entity is deemed located in the District of Columbia. See Section 9-307 [Maine cite section 9-1307]. Thus, to the extent that this Article applies to non- U.S. debtors, perfection could be accomplished in many cases by a domestic filing.

Priority. For tangible collateral such as goods and instruments, Section 9-301 [Maine cite section 9-1301] provides that the law applicable to priority and the effect of perfection or nonperfection will remain the law of the jurisdiction where the collateral is located, as under former Section 9-103 (but without the confusing "last event" test). For intangible