Government Code § 5502
CHAPTER 6. Uniform Facsimile Signatures of Public Officials Act
When the seal of this State or any of its departments, agencies, or other instrumentalities, or of any county, city, or public district, is required in the execution of a public security or instrument of payment, the authorized officer may cause the seal to be printed, engraved, stamped, or otherwise placed in facsimile thereon. The facsimile seal has the same legal effect as the impression of the seal.