Cal. Public Contract Code § 7109

(a) For purposes of this section: (1) “Antigraffiti technology” means landscaping, paint, or other covering resistant to graffiti, or other procedures to deter graffiti. (2) “Graffiti” means any unauthorized inscription, work, figure, or design that is marked, etched, scratched, drawn, or painted on any structural component of any building, structure, or other facility regardless of its content or nature and regardless of the nature of the material of the structural component. (3) “Project” means the erection, construction, alteration, repair, or improvement of any public structure, building, road, or other public improvement of any kind. (b) If a public entity determines that a project may be vulnerable to graffiti and the public entity will be awarding a public works contract after January 1, 1996, for that project, it is the intent of the Legislature that the public entity may do one or more of the following: (1) Include a provision in the public works contract that specifies requirements for antigraffiti technology in the plans and specifications for the project. (2) Establish a method to finance a graffiti abatement program. (3) Establish a program to deter graffiti.