West Virginia Code Chapter 22A. Miners' Health, Safety and Training § 22A-2A-801. Maintenance of diesel-powered equipment

(a) Rules of the commission shall require diesel-powered equipment to be maintained in an approved and safe condition or removed from service. Failure of the mine operator to comply with the maintenance requirements established by the board may result in revocation of the commission's approval of the diesel-powered equipment. The commission shall establish procedures for appropriate notification to be given to the mine operator, requiring the submission, evaluation and implementation of a plan to achieve and maintain compliance.

(b) Rules of the commission shall provide that service and maintenance of diesel-powered equipment shall be performed according to a specified routine maintenance schedule, on-board performance and maintenance diagnostics readings, emissions test results, and component manufacturer's recommendations.