Virginia Code Title 45.2. Mines, Minerals, and Energy § 45.2-853. Checking system; tracking system

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.