§ 57.22201 Mechanical ventilation (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines)
§ 57.22202 Main fans (I-A, I-B, I-C, II-A, III, V-A, and V-B mines)
§ 57.22203 Main fan operation (I-C mines)
§ 57.22204 Main fan operation and inspection (I-A, II-A, III, and V-A mines)
§ 57.22205 Doors on main fans (I-A, II-A, III, and V-A mines)
§ 57.22206 Main ventilation failure (I-A, II-A, III, and V-A mines)
§ 57.22207 Booster fans (I-A, II-A, III, and V-A mines)
§ 57.22208 Auxiliary fans (I-A, II-A, III, and V-A mines)
§ 57.22209 Auxiliary fans (I-C mines)
§ 57.22210 In-line filters (I-C mines)
§ 57.22211 Air flow (I-A mines)
§ 57.22212 Air flow (I-C, II-A, and V-A mines)
§ 57.22213 Air flow (III mines)
§ 57.22214 Changes in ventilation (I-A, II-A, III, and V-A mines)
§ 57.22215 Separation of intake and return air (I-A, II-A, III, and V-A mines)
§ 57.22216 Separation of intake and return air (I-C mines)
§ 57.22217 Seals and stoppings (I-A, I-B, and I-C mines)
§ 57.22218 Seals and stoppings (III, V-A, and V-B mines)
§ 57.22219 Seals and stoppings (II-A mines)
§ 57.22220 Air passing unsealed areas (I-A, II-A, III, and V-A mines)
§ 57.22221 Overcast and undercast construction (I-A, II-A, III, and V-A mines)
§ 57.22222 Ventilation materials (I-A, I-B, I-C, II-A, III, V-A, and V-B mines)
§ 57.22223 Crosscuts before abandonment (III mines)
§ 57.22224 Auxiliary equipment stations (I-A and III mines)
§ 57.22225 Auxiliary equipment stations (I-C mines)
§ 57.22226 Testing for methane (IV mines)
§ 57.22227 Approved testing devices (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines)
§ 57.22228 Preshift examination (I-A, I-C, II-A, III, and V-A mines)
§ 57.22229 Weekly testing (I-A, III, and V-A mines)
§ 57.22230 Weekly testing (II-A mines)
§ 57.22231 Actions at 0.25 percent methane (I-B, II-B, V-B, and VI mines)
§ 57.22232 Actions at 0.5 percent methane (I-B, II-A, II-B, IV, V-B, and VI mines)
§ 57.22233 Actions at 0.5 percent methane (I-C mines)
§ 57.22234 Actions at 1.0 percent methane (I-A, I-B, III, V-A, and V-B mines)
§ 57.22235 Actions at 1.0 percent methane (I-C, II-A, II-B, and IV mines)
§ 57.22236 Actions at 1.0 percent methane (VI mines)
§ 57.22237 Actions at 2.0 to 2.5 percent methane in bleeder systems (I-A and III mines)
§ 57.22238 Actions at 2.0 percent methane (I-B, II-B, V-B, and VI mines)
§ 57.22239 Actions at 2.0 percent methane (IV mines)
§ 57.22240 Actions at 2.0 percent methane (V-A mines)
§ 57.22241 Advance face boreholes (I-C mines)

Terms Used In CFR > Title 30 > Chapter I > Subchapter K > Part 57 > Subpart T > Ventilation

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