CFR›Title 31›Subtitle B›Chapter II›Part 306›Subpart O ContainsSections 306.115–306.117CorpusDaily eCFRDisplayed edition2026-10-15Last updated2026-10-15 Subpart O—Book-Entry Procedure Sections 306.115 § 306.115 Definition of terms. 306.116 § 306.116 Scope and effect of book-entry procedure. 306.117 § 306.117 Withdrawal of eligible book-entry Treasury securities for conversion to registered form. Previous N Subpart N—Relief for Loss, Theft, Destruction, Mutilation, or Defacement of Securities Next P Subpart P—Miscellaneous Provisions