### sec.210 Supervising and controlling shotfiring The underground mine manager for an underground mine must ensure coal mining operations where shotfiring activities are taking place are directly supervised and controlled by a person holding— a first class certificate of competency; or a second class certificate of competency; or a deputy’s certificate of competency. - (a) a first class certificate of competency; or - (b) a second class certificate of competency; or - (c) a deputy’s certificate of competency.

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