Gun-Free School Zone Act—Penal Code 626.9
626.9. (a) This section shall be known, and may be cited, as the Gun-Free School Zone Act of 1995.
(b) through (g) [omitted]
(h) Notwithstanding Section 12026, any person who brings or possesses a loaded firearm upon the grounds of a campus of, or buildings owned or operated for student housing, teaching, research, or administration by, a public or private university or college, that are contiguous or are clearly marked university property, unless it is with the written permission of the university or college president, his or her designee, or equivalent university or college authority, shall be punished by imprisonment in the state prison for two, three, or four years. Notwithstanding subdivision (k), a university or college shall post a prominent notice at primary entrances on noncontiguous property stating that firearms are prohibited on that property pursuant to this subdivision.
(i) Notwithstanding Section 12026, any person who brings or possesses a firearm upon the grounds of a campus of, or buildings owned or operated for student housing, teaching, research, or administration by, a public or private university or college, that are contiguous or are clearly marked university property, unless it is with the written permission of the university or college president, his or her designee, or equivalent university or college authority, shall be punished by imprisonment in the state prison for one, two, or three years. Notwithstanding subdivision (k), a university or college shall post a prominent notice at primary entrances on noncontiguous property stating that firearms are prohibited on that property pursuant to this subdivision.
(j) For purposes of this section, a firearm shall be deemed to be loaded when there is an unexpended cartridge or shell, consisting of a case that holds a charge of powder and a bullet or shot, in, or attached in any manner to, the firearm, including, but not limited to, in the firing chamber, magazine, or clip thereof attached to the firearm. A muzzle-loader firearm shall be deemed to be loaded when it is capped or primed and has a powder charge and ball or shot in the barrel or cylinder.
(k) This section does not require that notice be posted regarding the proscribed conduct.
(l) This section does not apply to a duly appointed peace officer as defined in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2, a full-time paid peace officer of another state or the federal government who is carrying out official duties while in California, any person summoned by any of these officers to assist in making arrests or preserving the peace while he or she is actually engaged in assisting the officer, a member of the military forces of this state or of the United States who is engaged in the performance of his or her duties, a person holding a valid license to carry the firearm pursuant to Article 3 (commencing with Section 12050) of Chapter 1 of Title 2 of Part 4, or an armored vehicle guard, engaged in the performance of his or her duties, as defined in subdivision (e) of Section 7521 of the Business and Professions Code.
(m) This section does not apply to a security guard authorized to carry a loaded firearm pursuant to Section 12031.
(n) This section does not apply to an existing shooting range at a public or private school or university or college campus.
(o) This section does not apply to an honorably retired peace officer authorized to carry a concealed or loaded firearm pursuant to subdivision (a) or (i) of Section 12027 or paragraph (1) or (8) of subdivision (b) of Section 12031.