Ind. Code § 22-10-3-1
As used in this article:
"Active workings" means all places in a mine that are ventilated and inspected regularly.
"Belt examiner" means an individual designated by the mine foreman to perform the functions as required by 30 CFR Part 75 in connection with examinations to ensure that the belt, belt drives, dump points, air movement, roof, and ribs of a mine are in safe condition.
"Board" refers to the mining board established under IC 22-10-1.5-2.
"Commercial mine" means any underground mine from which coal is produced for sale, exchange, or commercial use.
"Director" means the director of the bureau of mines and mine safety established under IC 22-1-1-4.
"Hoisting engineer" means an individual who is capable of transporting people and material in and out of a mine by means of a hoist.
"Interested persons" means the director, safety personnel designated by the operator, state and federal coal mine inspectors, and, to the extent required by law, any other person.
"Mine" means an underground commercial coal mine.
"Mine electrician" means a properly certified individual who can perform electrical work in:
"Mine examiner" means a properly certified person designated by the mine foreman to examine the mine for gas and other dangers. A mine examiner may temporarily act as a section foreman if designated to act as such by the mine foreman.
"Mine foreman" means the person charged with the responsibility of the general supervision of the underground working of a mine and the persons employed in the mine and for the health and safety of those employees.
"Mine inspector" means the person appointed to assist in administering this article.
"Mine Safety Administration" refers to the Mine Safety and Health Administration, United States Department of Labor.
"Mining laws" means:
"Operator" means an individual, firm, association, partnership, limited liability company, or corporation operating an underground coal mine or any part of a mine.
"Shot-firer" means a properly certified person designated by the mine foreman to perform the functions as required in this article in connection with breaking down coal or rock.
IC 22-10-3-1