California Code, Penal Code - PEN § 25460

(a) Except as provided in subdivision (b), no endorsement or renewal endorsement issued pursuant to Section 25465 shall be effective unless it is in the format set forth in subdivision (c).

(b) Any peace officer listed in subdivision (f) of Section 830.2 or in subdivision (c) of Section 830.5, who retired between January 2, 1981, and on or before December 31, 1988, and who is authorized to carry a concealed firearm pursuant to this article, shall not be required to have an endorsement in the format set forth in subdivision (c) until the time of the issuance, on or after January 1, 1989, of a renewal endorsement pursuant to Section 25465.

(c) A certificate issued pursuant to Section 25455 for any person who is not listed in Section 830.1 or 830.2, subdivision (a) of Section 830.33, or subdivision (c) of Section 830.5, or for any person retiring after January 1, 1981, shall be in the following format:  it shall be on a 2x3 inch card, bear the photograph of the retiree, include the retiree's name, date of birth, the date that the retiree retired, and the name and address of the agency from which the retiree retired, and have stamped on it the endorsement “CCW Approved” and the date the endorsement is to be renewed.  A certificate issued pursuant to Section 25455 shall not be valid as identification for the sale, purchase, or transfer of a firearm.