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 1 - General Physical Conditions and Structures
Article 2 - Standard Specifications
Section 3211 - Wall Openings

An opening in a wall or partition not provided with a glazed sash, having a height of at least 30 inches and a width of at least 18 inches, through which a person might fall to a level 30 inches or more below, shall be guarded by a guardrail or other barrier of such construction and mounting that the guardrail or barrier is capable of withstanding a force of at least 200 pounds applied horizontally at any point on the near side of the guardrail or barrier. Barriers may be of solid construction, grillwork with openings not more than 8 inches long, or of slatwork with openings not more than 4 inches wide with unrestricted length. (Title 24, Part 2, Section 2-1716.)

1. New section filed 6-20-75; effective thirtieth day thereafter (Register 75, No. 25).
2. Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No. 29).
3. Amendment filed 5-25-83; effective thirtieth day thereafter (Register 83, No. 22). Approved by State Building Standards Commission 1-24-83.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.