Government Code Section 8207.
A notary public shall provide and keep an official seal, which shall clearly show, when embossed, stamped, impressed or affixed to a document, the name of the notary, the State Seal, the words “Notary Public,” and the name of the county wherein the bond and oath of office are filed, and the date the notary public’s commission expires. The seal of every notary public commissioned on or after January 1, 1992, shall contain the sequential identification number assigned to the notary and the sequential identification number assigned to the manufacturer or vendor. The notary public shall authenticate with the official seal all official acts.
A notary public shall not use the official notarial seal except for the purpose of carrying out the duties and responsibilities as set forth in this chapter. A notary public shall not use the title “notary public” except for the purpose of rendering notarial service.
The seal of every notary public shall be affixed by a seal press or stamp that will print or emboss a seal which legibly reproduces under photographic methods the required elements of the seal. The seal may be circular not over two inches in diameter, or may be a rectangular form of not more than one inch in width by two and one-half inches in length, with a serrated or milled edged border, and shall contain the information required by this section.

Government Code Section 8206.
Notary register or journal
(a) (1) A notary public shall keep one active sequential journal at a time, of all official acts performed as a notary public. The journal shall be kept in a locked and secured area, under the direct and exclusive control of the notary. Failure to secure the journal shall be cause for the Secretary of State to take administrative action against the commission held by the notary public pursuant to Section 8214.1.

PLEASE NOTE: A manufacturer may produce a seal based on the receipt of a facsimile copy of the original Certificate of Authorization but the manufacturer shall not release possession of the notary public seal until the original Certificate of Authorization has been received and examined for authenticity.

A notary public seal produced based on the receipt of a facsimile copy of the original Certificate of Authorization shall be destroyed by the manufacturer if the original Certificate of Authorization is not received and found to be authentic within thirty (30) days of the seal’s production.