PART 1252—PORTFOLIO HOLDINGS Authority: 12 U.S.C. 4624. Source: 74 FR 5618, Jan. 30, 2009, unless otherwise noted. § 1252.1 Enterprise portfolio holding criteria. The Enterprises are required to comply with the portfolio holdings criteria set forth in their respective Senior Preferred Stock Purchase Agreements with the Department of the Treasury, as they may be amended from time to time. § 1252.2 Effective duration. This part shall be in effect for each Enterprise so long as— (a) This part has not been superseded through amendment, and (b) The Enterprise remains subject to the terms and obligations of the respective Senior Preferred Stock Purchase Agreement.