Act of March 8, 1938 (52 Stat. 108)
SECTION 4
With the approval of the Secretary of the Treasury, the Commodity
Credit Corporation is authorized to issue * * * bonds, notes,
debentures, and other similar obligations * * *. * * *
Such obligations shall be fully and unconditionally guaranteed both as to
interest and principal by the United States, * * *.
* * *
[15 USC 713a-4.]