7 U.S.C. § 2203 : US Code - Section 2203: Seal

Search 7 U.S.C. § 2203 : US Code - Section 2203: Seal

The Secretary of Agriculture is authorized and directed to
procure a proper seal, with such suitable inscriptions and devices
as he may approve, to be known as the official seal of the
Department of Agriculture, and to be kept and used to verify
official documents, under such rules and regulations as he may
prescribe.