There is a newer version of the California Code
2023
2022
2021
2020
2019
Other previous versions
View our newest version here

2011 California Code
Labor Code
DIVISION 5. SAFETY IN EMPLOYMENT [6300 - 9104]
CHAPTER 2. Gassy and Extrahazardous Tunnels
Section 7974


CA Labor Code § 7974 (through 2012 Leg Sess) What's This?

In any tunnel classified as gassy by the division, ventilation shall include continuous exhausting of fumes and air, unless an alternative ventilation plan which is as effective or better is approved by the division. Fans for this purpose shall be located at the surface, and shall be reversible from a single switch at the portal or shaft. These requirements shall not preclude the use of auxiliary fans to supply more air or greater exhaust to a tunnel or underground mine.

(Added by Stats. 1972, Ch. 1430.)

Disclaimer: These codes may not be the most recent version. California may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.