A. Each mine shall have a personnel checking system that includes the following requirements:
1. Every person underground shall have on his person a means of positive identification bearing a number recorded by the operator; and
2. An accurate record of the persons in the mine shall be kept on the surface in a place that will not be affected by an explosion. Such record shall consist of a written record, check board, lamp check, or time-clock record and shall bear a number identical to that carried by the person underground.
B. Any mine-wide tracking system shall be maintained in usable and operative condition.