Va. Code § 45.2-546
The Director may have trained and employed at the mine rescue and first aid stations operated by the Department mine rescue teams as he determines necessary. Each member of a mine rescue team shall devote four hours each month for training purposes and shall be available at all times to assist in rescue work. Members shall receive compensation for services at a rate set by the Director, to be determined annually based on prevailing wage rates within the industry. For the purposes of workers' compensation coverage during training periods, such team members shall be deemed to be within the scope of their regular employment. The Director shall certify to the Comptroller of the Commonwealth that such team members have performed the required service. Upon such certification, the Comptroller shall issue a warrant upon the state treasury for their compensation. The Director may remove any team member at any time.
Va. Code § 45.2-546