Notification of Methane Detected in Underground Metal and Nonmetal Mine Atmospheres

OMB 1219-0103

OMB 1219-0103

Title 30 CFR 57.22004(c) requires operators of underground M/NM mines to notify the Mine Safety and Health Administration (MSHA) as soon as possible if any of the following events occur: (a) there is an outburst that results in 0.25 percent or more methane in the mine atmosphere, (b) there is a blowout that results in 0.25 percent or more methane in the mine atmosphere, (c) there is an ignition of methane, or (d) air sample results indicate 0.25 percent or more methane in the mine atmosphere of a I-B, I-C, II-B, V-B, or Category VI mine. Under §§ 57.22239 and 57.22231, if methane reaches 2.0 percent in a Category IV mine or if methane reaches 0.25 percent in the mine atmosphere of a Subcategory I-B, II-B, V-B, or VI mine, MSHA shall be notified immediately. Although the standards do not specify how MSHA is to be notified, MSHA anticipates that the notifications would be made by telephone. Title 30 CFR 57.22229 and 57.22230 require that the mine atmosphere be tested for methane and/or carbon dioxide at least once every seven days by a competent person or atmospheric monitoring system or a combination of both. Section 57.2229 applies to underground M/NM mines categorized as I-A, III, and V-A mines where the atmosphere is tested for both methane and carbon dioxide. Section 57.22230 applies to underground M/NM mines categorized as II-A mines where the atmosphere is tested for methane. Where examinations disclose hazardous conditions, affected miners must be informed. Title 30 CFR 57.22229(d) and 57.22230(c) require that the person performing the tests certify by signature and date that the tests have been conducted. Certifications of examinations shall be kept for at least one year and made available to authorized representatives of the Secretary of Labor.

The latest form for Notification of Methane Detected in Underground Metal and Nonmetal Mine Atmospheres expires 2022-02-28 and can be found here.


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