United States Code/Title 4/Chapter 2
§ 41. Seal of the United States
The seal heretofore used by the United States in Congress assembled is declared to be the seal of the United States.
§ 42. Same; custody and use of
The Secretary of State shall have the custody and charge of such seal. Except as provided by section 2902 (a) of title 5, the seal shall not be affixed to any instrument without the special warrant of the President therefor.