CFR›Title 24›Subtitle B›Chapter III›Part 320 ContainsSubparts A–BCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 320—GUARANTY OF MORTGAGE-BACKED SECURITIES Subparts A Subpart A—Pass-Through Type Securities Sections 320.1–320.17 B Subpart B—Bond-Type Securities Sections 320.21–320.33 Authority12 U.S.C. 1721(g) and 1723a(a); and 42 U.S.C. 3535(d).Source60 FR 42015, Aug. 14, 1995, unless otherwise noted. Previous 310 Part 310—Bylaws of the Government National Mortgage Association Next 330 Part 330—Guaranty of Multiclass Securities