2024-16913. Petition for Modification of Application of Existing Mandatory Safety Standards  

  • TABLE 1—CO Alert and Alarm Levels

    Quantity (cfm) Concentration setting above ambient (ppm)
    From To Alert Alarm
    5,000 50,000 5 10
    50,000 200,000 4 8

Document Information

Published:
08/01/2024
Department:
Mine Safety and Health Administration
Entry Type:
Notice
Action:
Notice.
Document Number:
2024-16913
Dates:
All comments on the petition must be received by MSHA's Office of Standards, Regulations, and Variances on or before September 3, 2024.
Pages:
62793-62796 (4 pages)
PDF File:
2024-16913.pdf