Title XVIII — LABOR AND INDUSTRIAL RELATIONS

293.010. Definitions. — Unless the context clearly requires otherwise, as used in this chapter, the following terms have the following meanings: (1) "Adit", any practically horizontal way in or to a mineral deposit to be used for the same purposes as a shaft; (2) "Coal mine", any…

293.020. Applicability of law. — Unless indicated otherwise, this chapter applies to all mines in this state engaged in the mining or extraction of minerals for commercial purposes, except barite, marble, limestone, and sand and gravel, or the prospecting for or the production of…

293.030. Mine inspection fees, report, payment — fund created — records subject to inspection — late fee, amount — court action, when. — 1. Every operator engaged in this state in the mining or production of minerals for commercial purposes shall, within thirty days after the end…

293.040. Maps of mine, when made, contents. — The operator of each mine in this state shall on request of the director make, or cause to be made by a competent engineer, an accurate map of the underground workings of his mine. The map shall bear the name of the mine, its location…

293.050. Hours of work — safety rules — posting of law and rules. — 1. It is unlawful for any operator engaged in mining or prospecting for minerals to work any employee at such labor longer than eight hours in a day of twenty-four hours, without his consent, and it is declared t…

293.070. Limits on visitors. — Strangers or visitors shall not be allowed underground in any mine, unless accompanied by the operator or his deputy. ­­-------- (L. 1959 S.B. 188 § 7)

293.080. Mine owner to report, when. — Every operator shall submit a report to the director during the month of January of each year, which report shall include the name of the person or firm engaged in mining, the location of the mines, the number of acres of land owned or lease…

293.090. Director's report, contents. — The director shall compile and make an annual report to the governor on the first day of May setting forth the extent of workable mining lands in the state by counties, the type and manner of mining, the number of mines in operation, the nu…

293.100. Washrooms, dressing rooms, first aid equipment. — 1. The operator of every mine employing twenty-five or more men underground, for the purpose of improving the sanitation of his mine and preserving the health of his employees, shall provide and maintain at a convenient p…

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. …

293.120. Air safety requirements. — Air in which men work or travel in mines shall be improved when: (1) It contains less than nineteen and five-tenths percent oxygen; (2) It contains more than one-hundredth percent carbon monoxide; (3) It contains more than five-tenths percent c…

293.130. Mine railroad equipment and operating requirements — gasoline engines limited. — 1. The roadbed, rails, and all other elements of the track of all haulage roads in mines shall be constructed, installed, and maintained in a manner consistent with speed and type of haulage…

293.140. Escapement shafts, how equipped. — Any new escapement shaft constructed or opened for operation after the effective date of this chapter, shall be equipped with a substantial hoist or stairway. Such stairway shall be constructed at an angle not greater than forty-five de…

293.150. Electrical wiring and equipment requirements. — 1. Surface overhead high-potential power lines shall be placed at least fifteen feet above the ground and twenty feet above driveways and haulageways. The power lines shall be installed on insulators, and shall be supported…

293.160. Electrical equipment requirements. — 1. Metal conduit and metallic coverings and armor of cables shall be grounded and shall be electrically continuous to afford a conductor path for the ground circuit. 2. Metallic frames, casings, and other electrical equipment that can…

293.170. Fire safety requirements. — 1. Each mine shall be provided with suitable firefighting equipment, adequate for the size of the mine and the type of operations conducted. 2. Underground storage places for highly combustible material, lubricating oil and grease shall be of …

293.180. Protective clothing and devices to be worn. — 1. All persons shall wear protective hats while underground and also while on the surface where falling objects may cause injury, except where conditions are such that the wearer would be subjected to physical hardship. 2. Pr…

293.190. Accident reports, investigation, powers of inspector — failure to report, penalty. — Whenever loss of life or serious personal injury shall occur by reason of any explosion or of any accident whatsoever, in or about any mine, it shall be the duty of the person having cha…

293.200. Shaft coal mine outlets and escapement shaft requirements — penalty. — 1. It is unlawful for any owner, agent or operator of any coal mine worked by shaft to employ or permit any person to work therein unless there are to every seam of coal worked in each mine at least t…

293.210. Shaft coal mines, ventilation requirements. — 1. The owner, agent or operator of every coal mine, whether operated by shaft, slope or drift, shall provide and maintain for every such mine a good and sufficient amount of ventilation for such men as may be employed therein…

293.220. Daily examination of coal mines generating explosive gas, record. — All coal mines generating explosive gas in which men are employed shall be examined every morning by a practical and duly authorized agent of the proprietor, to determine whether there are any dangerous …

293.230. Experienced coal miner to handle explosives or gases. — It shall be unlawful for any operator or agent of a coal mine to employ persons underground whose duties may involve contact with inflammable gases, or the handling of explosives, who have not had experience in such…

293.240. Blasting cartridge requirements. — It shall be unlawful for coal miners in any mine to charge a blasting hole with loose powder, or otherwise than with a properly constructed cartridge; and in dry and dusty mines, it shall be unlawful to load cartridges in the mines exce…

293.250. Violation of coal mining safety laws, penalty. — Every owner, agent or operator of any coal mine in this state, employing five or more persons, violating any of the provisions of sections 293.210 to 293.240, shall be deemed guilty of a misdemeanor, and on conviction shal…

293.260. Explosive strongbox required — employment of shot firers, duties — penalty. — 1. All owners, agents or operators of coal mines shall require of all miners or other persons employed in and about a mine, using gun or blasting powder or other explosives, to have and keep a …

293.270. Storage of over daily supply of explosives in mine prohibited. — No person, partnership or corporation, nor any agent of any such person, partnership or corporation, engaged in mining for coal, shall permit any blasting powder or any high explosive containing nitroglycer…

293.280. Location of explosive storage magazines, ventilation. — All blasting powder, or other high explosive, in excess of the temporary supply required in such mine as designated in section 293.270, shall be stored in a magazine, placed not less than three hundred feet distant …

293.290. Detonators or caps not kept in magazine in coal mine. — No detonators or explosive caps shall be kept in the same magazine in a coal mine with any blasting powder or other high explosive. ­­-------- (L. 1959 S.B. 188 § 32)

293.300. Explosives not to be prepared in storage magazine. — No person, partnership or corporation, nor any agent of any such person, partnership or corporation engaged in mining as defined in section 293.270, shall permit any blasting powder or other high explosive to be prepar…

293.310. Violations of law as to explosive storage, penalty. — Any person, partnership or corporation, or the agent of any such person, partnership or corporation, who shall violate any of the provisions of sections 293.270 to 293.300, shall be guilty of a misdemeanor and shall, …

293.320. Bore holes required, when, where. — The owner, agent or operator of any coal mine shall provide that bore holes shall be kept twenty feet in advance of the face of each and every working place, and, if necessary, on both sides, when driving toward an abandoned mine and p…

293.330. Signaling and hoisting devices in shaft, safety requirements. — The owner, agent or operator of every coal mine operated by shaft shall provide suitable means of signaling between the bottom and the top thereof, and shall also provide safe means of hoisting and lowering …

293.340. Coal mines with twenty-five miners, signalmen required — hoisting cages furnished, when — penalty. — 1. The owner, agent or operator of all coal mines employing twenty-five or more men, shall cause a competent person to be stationed at the top of the shaft, and a compete…

293.350. Hoisting equipment, operating requirements (coal mines). — No owner, agent or operator of any coal mine operated by shaft or slope shall place in charge of any engine whereby men are lowered into or hoisted out of the mines any but an experienced, competent and sober per…

293.360. Inspection of hoisting equipment, records — penalty (coal mines). — 1. Every owner or operator, or the agent of such owner or operator of any coal mine in this state, who shall employ twenty-five or more miners or mine laborers, where any mechanical device is or shall be…

293.370. State inspector to post statement of mine condition and hoisting rules (coal mines). — The director of the division of mine inspection shall post up in some conspicuous place at the top of each coal mine visited and inspected by him, a plain statement of the conditions o…

293.380. Coal mine operated, how — abandoned workrooms sealed, penalty. — 1. The owner, agent or operator of any coal mine in this state, employing five or more persons, if said mine is worked on the room and pillar plan, shall cause the work in such mine to be prosecuted in the …

293.390. Standards for roof control — supply of materials required (coal mines). — 1. The operator of every coal mine shall compile or have compiled a set of minimum standards for systematic roof control suitable to the roof conditions and mining system of his mine. After written…

293.400. Coal dust controls. — 1. The operator of a coal mine shall not permit excessive accumulation of coal dust in any part of the mine. Where mining operations raise an excessive amount of dust, water or water with a wetting agent added to it or other effective methods shall …

293.410. Welding and cutting operations, ventilation, rock-dusting. — In coal mines welding and cutting with electricity or flame shall be restricted to places where trolley locomotives are permitted to operate. Where it is necessary to do welding and cutting in face regions, per…

293.420. Weighing regulations where coal miners paid by weight. — 1. In all coal mines, the miners shall be paid by weight, and the operator of every coal mine shall provide and hereafter maintain suitable and accurate scales, which scales shall be examined, tested, and kept in t…

293.430. State inspectors to check scales — refusal to allow test and fraudulent weighing, penalties. — 1. The division of mine inspection is the inspector of weights and measures at all coal mines in this state, and all inspectors thereof are authorized, empowered and directed t…

293.440. Weighing laws apply to "loaders", when. — The manner of weighing, as herein provided for, shall apply to the class of workers in mines known as "loaders", engaged in mines wherein the mining is done by machinery, whenever the workmen are under contract to load coal by th…

293.450. Coal miners to be brought to surface for lunch period of hour, penalty. — 1. On and after the passage and taking effect of this section all owners, lessees and operators of any coal mine in this state, the work of which is located below the surface of the ground, entranc…

293.460. Coal miner to prove qualifications before working alone — penalty. — Any person desiring to perform the work of a coal miner and for himself to conduct room, entry or other underground mining in coal mines of this state, shall, before being permitted to engage in such wo…

293.470. Division to close coal mine, when — penalty. — The director of the division of mine inspection and his assistants shall have the power, and it is hereby made their duty, to stop the operation of and close any coal mine or part thereof where poisonous damps exist, where r…

293.480. Coal miners paid wages, when — penalty. — 1. All persons or corporations engaged in or operating any coal mines in this state shall pay their employees once in every fifteen days in lawful money of the United States, and at no payday shall there be withheld any of the ea…

293.490. Coal miner's lien for wages. — All employees of coal mines have, as security for work performed, a lien upon all property of the person owning, constructing or operating the mine, used in construction or operation, including real estate, building, machinery, and all othe…

293.500. Applicability of sections 293.200 to 293.490. — The provisions of sections 293.200 through 293.490 are applicable only to coal mines. ­­-------- (L. 1959 S.B. 188 § 55)

293.510. Dangerous mines to be closed by state, expenses. — When any mine except a coal mine is so operated that, in the opinion of the mine inspector, there is imminent danger to the lives, health or safety of the miners or employees, the inspector shall at once instruct the per…