California Code, Government Code - GOV § 53554

(a) Be negotiable in form;

(b) Recite that they are bonds of the local agency issuing the bonds;

(c) Recite that they are issued pursuant to the provisions of this article;

(d) Be executed in the name of the local agency; and

(e) Be signed by the president or chairman of the legislative body of the local agency, and executed, countersigned or attested by such officer or officers of the local agency as are required to execute, countersign or attest bonds issued pursuant to the principal act, as the case may be.

The interest coupons shall be signed in the same manner as interest coupons attached to bonds issued by the local agency pursuant to the principal act. The provisions of the Uniform Facsimile Signatures of Public Officials Act (Chapter 6, (commencing with Section 5500), Division 6, Title 1) apply to refunding bonds issued pursuant to this article.