California Code
ARTICLE 3 - Scope of Regulation
Section 7831.

7831. It is unlawful for anyone to stamp or seal any plans, specifications, plats, reports, or other documents with the seal after the certificate of the registrant, named thereon, has expired or has been suspended or revoked, unless the certificate has been renewed or reissued.

(Added by Stats. 1968, Ch. 942.)