California Code, Penal Code - PEN § 626.95

(a) Any person who is in violation of paragraph (2) of subdivision (a), or subdivision (b), of Section 417, or Section 25400 or 25850, upon the grounds of or within a playground, or a public or private youth center during hours in which the facility is open for business, classes, or school-related programs, or at any time when minors are using the facility, knowing that he or she is on or within those grounds, shall be punished by imprisonment pursuant to subdivision (h) of Section 1170 for one, two, or three years, or in a county jail not exceeding one year.

(b) State and local authorities are encouraged to cause signs to be posted around playgrounds and youth centers giving warning of prohibition of the possession of firearms upon the grounds of or within playgrounds or youth centers.

(c) For purposes of this section, the following definitions shall apply:

(d) It is the Legislature's intent that only an actual conviction of a felony of one of the offenses specified in this section would subject the person to firearms disabilities under the federal Gun Control Act of 1968 (P. L. 90-618; 18 U.S.C. Sec. 921 et seq.).