§ 45.2-846 Air quality
A. All active workings shall be ventilated by a current of air containing at least 19.5 percent by volume of oxygen and no harmful amount of any noxious or poisonous gas.
B. The volume and velocity of the current of air in all active workings shall be sufficient to dilute, render harmless, and carry away flammable, explosive, noxious, and harmful gases, dust, smoke, and explosive fumes.
History
The record of this law’s original creation isn’t available online. It has been modified 7 times. Those modifications are cataloged by “The Acts of Assembly,” a state publication, by year and chapter. Those modifications that can be read on the General Assembly’s website will be linked accordingly. Those modifications are as follows: in 1954, chapter 191; in 1966, chapter 594; in 1968, chapter 310; in 1993, chapter 442; in 1994, chapter 28; in 1996, chapter 774; in 2005, chapter 3.
Code 1950, § 45-60.3; 1954, c. 191; 1966, c. 594, § 45.1-63; 1968, c. 310; 1993, c. 442; 1994, c. 28, § 45.1-161.229; 1996, c. 774; 2005, c. 3; 2021, Sp. Sess. I, c. 387.