Until the two travel ways are made as required by § 45.2-726, no more than 20 miners shall work underground in the mine at one time. No additional development shall be permitted until the connection is made to the second opening. In a mine in which final pillar removal operations necessitate closing the second opening, no more than 20 miners shall be permitted to work in the mine.\nCode 1950, § 45-71; 1954, c. 191; 1966, c. 594, § 45.1-94; 1994, c. 28, § 45.1-161.164; 1996, c. 774; 2021, Sp. Sess. I, c. 387.
Virginia Legal Code