31 C.F.R. § 363.95
You may give a book-entry savings bond as a gift in two ways:
[67 FR 64286, Oct. 17, 2002, as amended at 68 FR 24807, May 8, 2003; 70 FR 57437, Sept. 30, 2005; 74 FR 19419, Apr. 29, 2009]