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 2 - Safe Practices and Personal Protection
Article 7 - Miscellaneous Safe Practices
Section 3303 - Flying Particles or Substances

Wherever there is danger of injury from flying particles or substances, adequate shields, screens, chip guards, or enclosures shall be provided and they shall be designed and constructed for the purpose of deflecting or confining said flying particles or substances in a manner that will prevent injury to employees. When it is not possible to provide such guards, employees subject to such hazards shall be protected by the use of personal protective equipment.

1. Amendment filed 10-25-74; effective thirtieth day thereafter (Register 74, No. 43).