§ 33.51. Definitions.

 The following words and terms, when used in this subchapter, have the following meanings, unless the context clearly indicates otherwise:

   Blaster, shooter or shot firer—Any miner or other person who has a valid blaster’s license and who has satisfactorily demonstrated his ability to charge and fire explosive materials in a mine with a reasonable degree of safety.

   Class A magazine—The principle magazine located outside of the mine, used for the storage of the main supply of explosives and constructed in accordance with the specifications contained in Chapter 5, Subchapter D (relating to explosives).

   Class B magazine—The magazine located in remote and unused sections of a mine in the outlet airway and constructed in accordance with the specifications of Chapter 5, Subchapter D.

   Class C magazine—A magazine constructed according to the regulations of the Department for the use of one day’s supply of explosives.

   Drift—Any inclined way or opening wherein haulage is effected by means of animals, motors, or locomotives and which is used for the same purposes as a shaft or slope.

   Mine—All underground workings and excavations, shafts, tunnels, slopes, drifts, entries and other openings which are being sunk or driven, together with all roads, appliances, machinery, and material connected with these operations below the surface.

   Mine foreman or foreman—The person who is designated by the owner, operator, or superintendent to have immediate general supervision of all underground workings and operations in a mine.

   Owner or operator—The person, firm or body corporate who is in legal possession of a mine.

   Shaft—A vertical opening through the strata which is or may be used for the purpose of ventilation or drainage, or for hoisting men or materials in connection with mining operations.

   Slope—Any inclined way or opening used for the same purposes as the shaft.

   Superintendent—The person who shall have, on behalf of the owner or operator, general supervision of one or more mines.

   Timbers—All wood used in strengthening and supporting any part of a mine and all steel and concrete material used in lieu of timber.

   Tunnel—Any level or nearly level underground passage.

   Working—All excavated parts of a mine including those being worked as well as those which have been abandoned.