31 C.F.R. § 357.11 – Laws governing other interests in Treasury securities.

(b) What is the “Securities Intermediary's jurisdiction” for purposes of this section? See the following table:

If . . .	Then the securities intermediary's jurisdiction is . . .
(1) An agreement between the Securities Intermediary and its Entitlement Holder governing the securities account expressly provides that a particular jurisdiction is the Securities Intermediary's jurisdiction for purposes of Part 1 of Article 8 of the Uniform Commercial Code, Article 8 of the Uniform Commercial Code, or the Uniform Commercial Code	the jurisdiction agreed upon.
(2) An agreement between the Securities Intermediary and its Entitlement Holder governing the securities account expressly provides that it is governed by the law of a particular jurisdiction	the jurisdiction agreed upon.
(3) The statements in paragraphs (b)(1) and (2) of this table do not apply, but the agreement expressly specifies that the securities account is maintained at an office in a particular jurisdiction	the jurisdiction where the office is located.
(4) The statements in paragraphs (b)(1) through (3) of this table do not apply and an account statement identifies the office serving the Entitlement Holder's account	the jurisdiction where the office is located.
(5) None of the statements in paragraphs (b)(1) through (4) of this table apply	the jurisdiction in which the chief executive office of the Securities Intermediary is located.

(c) What law governs the perfection of a security interest automatically or by filing? The law (but not the conflict-of-law rules) of the jurisdiction in which the Person creating a security interest is located governs whether and how the security interest may be perfected automatically or by filing a financing statement. (This is despite the general rule in (a)(5) of this section).
(d) Where is a Person located, for purposes of paragraph (c) of this section? A Person's location is determined under state law, including Revised Article 9 (incorporated by reference, see § 357.2), as it may be amended from time to time.
(e) What law governs if the jurisdiction in table (b) of this section did not adopt Revised Article 8 or Revised Article 8 as amended by Revised Article 9 (both incorporated by reference, see § 357.2)? The law for the matters specified in paragraph (a) of this section shall be the law of that State as though the State adopted Revised Article 8.
(f) What other rules apply? For purposes of the matters specified in paragraph (a) of this section, the Federal Reserve Bank maintaining the Securities Account is a clearing corporation and the Participant's interest in a Book-entry Security is a Security Entitlement.