D. The number of persons riding in any cage or car at one time shall not exceed the maximum prescribed by the manufacturer. The Chief may prescribe a lesser number when necessary to ensure the safety of miners being transported.
F. Whenever miners are working at the bottom of a shaft, there shall be an adjustable ladder or chain ladder attached to the work deck to provide an additional means of escape. Such ladder shall be at least twenty feet in length.
Code 1950, § 45-68.4; 1954, c. 191; 1966, c. 594, §§ 45.1-68, 45.1-69; 1972, c. 784; 1978, c. 729; 1994, c. 28; 1996, c. 774.