Missouri Revised Statutes Title XVIII. Labor and Industrial Relations § 293.110. Working places, shafts--drinking devices

1. All working places shall be secured sufficiently to protect employees working at the face from falls of roof, ribs, or face. Loose top and overhanging or loose faces and ribs shall be supported adequately or taken down.

2. The bottom of every shaft shall be supplied with a traveling way, to enable men to pass from one side of the shaft to the other, and without passing under or over the cages.

3. Every owner, agent or operator of any mine in this state, employing ten or more men, shall provide sanitary drinking devices for the use of their employees.