California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 7 - General Industry Safety Orders
Group 14 - Radiation and Radioactivity
Article 103 - Actinic Radiation
Section 5079 - Ultra-Violet Radiation

(a) Sterilizing lamps or other equipment producing ultra-violet radiation shall be so arranged or shielded that ultra-violet radiation, either direct or reflected, does not strike employees' eyes in harmful intensity; where such arrangement or shielding is not practicable, employees shall be provided with goggles of a type which will prevent such radiation from injuring the eyes.

(b) Areas, rooms or locations where equipment producing such radiation is located shall be posted with warning signs or legends.