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<br />1 <br />Chapter 1 <br />INTRODUCTION <br />A. Purpose Of Mine Ventilation Plans <br />Plans adopted by the mule operator and approved by the district manager define minimum ' <br />safety and health requirements for the mine. A sound ventilation plan is essential to <br />maintaining adequate ventilation and respirable dust control in the mine. A good plan ' <br />includes information that supervisors and miners need to be aware of to have effective <br />ventilation in their working environment. The plan adopted by the mine operator and <br />approved by the district manager should define minimum requirements for the mine. ' <br />B. Authority ' <br />Section 303(0) of the Mine Act. <br />30 CFR 75.370 ' <br />30 CFR 75.371 specifies information which must be included in the ventilation plan as a ' <br />minimum. Additional information maybe required to suit the particular conditions at the <br />mine. , <br />30 CFR 75.372 lists information the operator must submit on the mine map to MSHA. <br />The map shows information which is critical to the plan approval process but is not subject <br />to approval by the district manager. Only that portion of map which contains the ' <br />information required under 30 CFR 75.371 is subject to approval. <br /> <br />C. Responsibility <br />O <br />l <br />h <br />' , <br />n <br />y t <br />e district manager or those designated as actuig in the manager <br />s absence have the <br />responsibility and authority for plan approvals. THIS APPROVAL AUTHORITY <br />CANNOT BE REDELEGATED. ' <br /> <br />Chapter 2 <br /> <br />