Identify which of the following statements is false.
◦ Letter rulings are not published by the U.S. Government Printing Office.
◦ Technical advice memoranda are issued by the Internal Revenue Service's National Office to provide an answer to a technical question that arises in an audit.
◦ The citation Ann. 2006-12, I.R.B. 2006-51, 22 refers to an annotation of an Internal Revenue Service release.
◦ Announcements are more technical than information releases.