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Mine. An area of land from which minerals are extracted in non-liquid form.
Movable. The machine or device can be, and usually is, moved about in course of normal operations, but is too heavy to be carried. This includes self-propelled machines.
Permissible. Applied to any device, equipment, or appliance means that such device, equipment, or appliance is classed as permissible by the Mine Safety and Health Administration.
Portable. The machine or device can be, and usually is, carried about in the course of normal operation.
Public Conveyance. Any railroad car, street car, ferry, cab, bus, airplane, or other vehicle which is carrying passengers for hire.
Return Air Course. The air course through which the vitiated air of a mine is returned or conducted to the surface.
Return Air. The mine air or ventilation current that has passed through the active mine workings and is returning to the surface.
Railroad. Any railway or tramway which carries passengers for hire, on the particular line or branch in the vicinity where explosives are stored, or where explosives-manufacturing buildings are situated.
Secured or Securely Fastened. The device or object referred to is so anchored that it will not become accidentally detached, displaced, or removed under normal use and foreseen circumstances.
Shaft. A passageway to underground workings through which mining operations are conducted. A shaft is either vertical or inclined at an angle greater than 20 degrees from the horizontal.
A winze or raise in which men are hoisted or lowered shall be considered a shaft for the purpose of these Orders.
Shall and Should. Shall means mandatory and should means recommended.
Stope. An underground excavation resulting from actual mining of ore or waste, as distinguished from other excavations, such as drifts, crosscuts, raises, or winzes.

Substantially Constructed or Substantial Construction. Construction of such strength, material, and workmanship that the object will withstand all reasonable shock, wear, usage, and deterioration it was designed to withstand.
Timber. Wood, steel, concrete, or other materials used for bracing or supporting the ground.
Trackless Vehicle. A type of vehicle that does not run on railroad tracks.
Tramway. An aerial passenger tramway used to transport passengers by the use of overhead steel cables or by ropes supported in one or more spans.
Underground. Mines, tunnels or similar confined subterranean excavations.


Note: Authority cited: Sections 142.3 and 7997, Labor Code. Reference: Sections 142.3 and 7997, Labor Code.






s 6960. Reports to the Division.
(a) Whether or not personal injury results, the person in charge shall notify the Division forthwith of every case of:
(1) Fire threatening injury to men or mine workings.
(2) Appearance of dangerous accumulations of gas.

(3) Breakage of cables or other gear by which men are hoisted or lowered.
(4) Overwinding while men are being hoisted.
(5) Serious inrush of water.
(6) Advancing a mine working within 100 feet of any other mine working suspected of containing a dangerous accumulation of water or gases.
(7) Crushing of active mine workings.
(8) Any serious problem of ground instability.
(9) Fatal accidents and accidents resulting in two or more serious injuries.
(10) Any other accident, occurrence, or change of condition that tends to materially increase the hazards of mining.




s 6962. Safety Bulletin Boards.
(a) A safety bulletin board shall be provided at each mine. All notices pertaining to the mine safety shall be posted on the safety bulletin board.
(b) A second bulletin board may be used for posting other bulletins, pictures, slogans, and circulars.




s 6963. (18-6). Safety Training and Instructions.
When an employee is first engaged, the person in charge shall determine the extent of the employee's experience at the work for which he has been hired. He shall instruct all new employees in the hazards of the job and the safe performance of the duties.




s 6964. Safety Committee.
(a) Except as provided in subsection (b) of this section, a safety committee shall be organized at each place of employment to which these Orders apply.
Members of the committee shall acquaint themselves with the Safety Orders of the Division.
They shall review and discuss the cause of accidents occurring to employees in the mine or operations connected therewith, and shall devise and recommend ways and means for the prevention of accidents.
They shall carry on safety education among the employees and encourage employees to make safety suggestions. All safety suggestions shall be considered by the committee.
At least once every month a safety committee shall make a detailed inspection of all working places, and equipment. They shall note any unsafe practices and conditions and shall promptly report their findings to the person in charge. A written record shall be made of the suggestions offered and action taken.
(b) At mines employing fewer than five men, personal safety instruction for all employees each month will be accepted in lieu of the safety committee required by subsection (a) of this section.




s 6965. (3-9). Reporting Unsafe Conditions.
Any unsafe condition of ground control, defects in or damage to machinery, apparatus, or equipment resulting in unsafe or dangerous conditions, and accidents occurring in course of operations which may result in personal injury, shall be reported to the employer. The employer shall investigate such reports promptly, and shall take such actions as may be required to correct the condition if it is in fact unsafe or dangerous.




s 6966. Supervision.
(a) The operator of every mine shall appoint a competent man who shall be personally in charge of the work and the employees therein.
(b) The operator of such mine may be personally in charge of such work and employees.
(c) Some competent person in authority shall be on duty whenever employees are working in a mine.




s 6967. Certification of Safety Representatives at Underground Mines.
(a) The employer shall designate a competent safety representative, certified by the Division experienced in underground mining with the responsibility of administering the safety program. He shall institute action to correct unsafe conditions and unsafe practices.
Every person requesting certification as a safety representative shall submit a completed application form to the Division. Upon submission of an application for certification as a safety representative, the Division shall collect the amount of $15.00 for examination fee which is non-refundable. Renewal fees are $5.00 annually.
(b) Labor Code Excerpts: Section 8003.
"Violation of regulations, rules, orders, or special orders adopted by the board or division as a condition of certification shall be punishable by suspension or revocation of certification, unless such violation is responsible for death or injury to employees, in which case it shall be punishable as a misdemeanor."


Note: Authority cited: Section 142.3, Labor Code.






s 6968. First-Aid Training.
(a) At underground mines employing more than 5 men, a sufficient number of supervisors and workmen shall be trained in the U.S. Bureau of Mines Manual of First-Aid Instructions so that at least 25 percent of the personnel are so trained.
(b) Some person trained in first aid shall be readily available at surface operations where five or more workers are employed at one time.
(c) The training should be given by the U.S. Bureau of Mines, or it may be given by an instructor holding an effective first-aid instructor's certificate from the U.S. Bureau of Mines, or by anyone holding an effective Red Cross Instructor's Certificate, or by a licensed physician.




s 6969. (15-1). Care of the Injured.
(a) Every mine shall be provided with an approved mine-type stretcher, a woolen blanket or equally warm covering, and a waterproof covering for injured employees unless ambulance service is readily available to all locations in the operation.
(b) If more than 25 men are working underground at the same time, an additional stretcher, blanket, and waterproof covering for each 25 men or fraction thereof shall be provided.
Each stretcher shall be provided with at least 20 feet of one-half-inch rope, or equivalent, for securing an injured man in the stretcher.
(c) When considered necessary by the Division, stretchers shall be provided with a rope or other safe means for hoisting or lowering.
(d) Adequate first-aid dressing shall be provided and placed at locations about the mine convenient for treatment of injured employees.
Note: It is recommended that the employer seek the advice of a medical doctor regarding the type and quantity of first-aid dressings to be placed about the mine.
(e) First-Aid materials shall be kept in dry, sanitary, and usable condition, and shall be readily available to employees.
(f) A recommended method of treatment shall be kept readily available at all times where dangerously poisonous substances are used. A method prescribed by a medical doctor is acceptable. Water or neutralizing agents shall be available where corrosive chemicals or other harmful substances are stored, handled, or used.
(g) (18-14) Arrangements shall be made in advance for obtaining emergency medical assistance and transportation for injured persons.
(h) (18-12) The name, address, and telephone numbers of the physician, hospital, and ambulance to be called in an emergency shall be posted on the safety bulletin board and at telephones and in the hoist room of underground mines.
(i) Some suitable means of transportation shall be readily available where the services of an ambulance cannot be secured in one hour.
Note: The intent of this Order is that there shall be no unnecessary delay in getting seriously injured employees to medical attention. Ambulance service should be utilized where possible, but it is recognized that mines exist in isolated places not possible to reach by ambulance. Therefore, "suitable means of transportation" means the type of transportation ordinarily used by employees when going to or coming from a mine not possible to reach by ambulance.





s 6973. (3-22). General Safety Precautions.
(a) Every reasonable precaution shall be taken to insure the safety of workmen in all cases, whether or not provided for in these orders.
(b) No employee shall be permitted to work in an unsafe place unless for the purpose of making it safe and then only after proper precautions have been taken to protect him while doing such work.
(c) (20-1) Intoxicating beverages and narcotics shall not be permitted or used in or around mines. Persons under the influence of alcohol or narcotics shall not be permitted on the job.
(d) (3-9) Men shall examine their working places before starting work and frequently thereafter, and any unsafe condition shall be corrected.
(e) Only a bar blunt on one end shall be used for loading at chutes or for barring down loose rock in any part of the mine.
(f) All spikes, nails, and other sharp objects that protrude and may cause injury shall be bent down or removed.
(g) (18-20) (18-25) No employee shall be assigned, or allowed, or be required to perform work alone in any area where hazardous conditions exist that would endanger his safety unless he can communicate with others, can be heard, or can be seen.
UNDERGROUND

(h) Materials shall not be placed or permitted to remain where they can fall down a shaft, manway, winze, raise, or other opening.
(i) Employees shall be warned when others are working above or below them so employees will not be injured by falling rock or materials.
(j) (3-22) No other work shall be done in a working place until it has been barred down and made safe for work. The roof and sides shall be examined several times during the working shift.
(k) (18-25) Solitary employment is prohibited in sinking, enlarging, and maintaining shafts, and in installing and maintaining equipment located in the shaft.




s 6974. (18-27). Check List for Underground Employees.
(a) The operator of every mine shall provide and maintain on the surface a check list by which every man shall be checked into and out of the mine on each shift.
Note: This may be done by several methods, such as the use of time cards, numbered cap lamps, check boards with metal checks, having the employee report to a clerk or timekeeper when he enters or leaves the mine, or any other method acceptable to the Division.
(b) At the end of the shift the check list shall be examined to see if all men are out of the mine, except men who are authorized to remain therein.
If the check list indicates that an unauthorized employee remains in the mine, a prompt search shall be made for the missing man.




s 6975. (20-2). Drinking Water.
(a) Water suitable for drinking shall be available to all employees during working hours.
This may be accomplished by piping water into the mine and providing drinking fountains or by providing individual canteens or by other sanitary means.
(b) Common drinking vessels are prohibited.




s 6976. Change Rooms.
(a) Where the lack of such facilities constitutes a hazard to health and safety, the division may require heated change rooms, with shower baths, or other washing facilities; hot and cold water; lavatories; and adequate space for the clothing of employees.
(b) Change rooms shall be kept clean, orderly and in a sanitary condition.
(c) Change rooms shall be located at a point convenient to the pit.




s 6977. Change Rooms.
The provisions of T8-6977 of Part 6, T-24, are incorporated herein as a part of these regulations and reads as follows:
T8-6977. Change Rooms. In addition to the provisions of Part 2, the following shall apply to all mine construction.
(a) The operator of every mine shall provide a change room for the use of employees for drying clothes and bathing.
(b) The change room shall be placed in a convenient location for use by employees but, because of the danger of fire, it shall not be nearer than 100 feet from any mine opening, fan house, or hoist house.
(c) Except as provided in subsection (e) of this section the change room shall be equipped with shower baths having hot and cold water, and shall have at least 1 shower for each 15 men on a shift working in the mine.
(d) Change rooms shall be provided with adequate means of heating and lighting, and shall be kept in a reasonably clean and sanitary condition.
(e) Mines which employ fewer than 10 mean and which have no suitable water available on the property for washing or bathing need not comply with the shower bath provisions of this section, but shall provide their employees with washing facilities that are reasonably clean and sanitary.
(f) The change room shall be available to employees at all times when they are going on or coming off shift.
(g) It is recommended that working clothes be either elevated by suitable means, such as chains, to the upper air of the change house or that separate rooms be used for working and street clothes.




s 6978. Sanitation.
(a) An adequate number of dry or water closets shall be provided at convenient locations on the main working levels or on the surface. Ready means of access shall be provided to each closet.
Note: For purposes of this section, "convenient" means within five minutes of travel from any working place.
(b) Means shall be provided for removing the contents of each closet and for cleansing of the closet. The contents shall be removed often enough to prevent the closet from becoming offensive.
(c) Each closet shall be provided with some disinfectant or deodorant to be sprinkled upon the contents thereof.
(d) All men employed at any mine where closets are provided shall be required to use such closets.




s 6980. Personal Protection.
(a) Employees shall be safeguarded with personal protective equipment as required by the General Industry Safety Orders.
(b) (15-2) All persons shall wear suitable hard hats when in or around a mine or plant where falling objects may create a hazard.
(c) (15-2) Every person underground shall be safeguarded by an approved safety hat or safety cap.
(d) (15-3) All persons shall wear suitable protective footwear when in or around an area of a mine or plant where a hazard exists which could cause an injury to the feet.
(e) (15-3) Every employee underground shall be safeguarded by safety boots or safety shoes.
(f) (15-4) All persons shall wear safety glasses, goggles, or face shields, or other suitable protective devices when in or around an area of a mine or plant where a hazard exists which could cause injury to unprotected eyes.
(g) (14-14) Face shields or goggles, in good condition, shall be worn when operating a grinding wheel.
(h) (15-7) Protective clothing or equipment and face shields or goggles shall be worn when welding, cutting, or working with molten metal.
(i) (15-20) Life jackets or belts shall be worn where there is danger from falling into water.




s 6981. (15-5). Safety Belts and Life Lines.
(a) Safety belts and lines shall be worn when men work where there is danger of falling.
No employee shall be permitted to enter any bin, bunker, or other storage place containing materials which may cave or run unless he is provided with and is wearing a safety belt with life line attached. He shall be attended by another workman, who shall keep the life line reasonably taut at all times.
(b) Life lines shall be of three-fourths inch diameter Manila rope or equivalent.
(c) Life lines subject to excessive fraying or rock damage shall be protected or shall have wire center rope. Seriously worn or damaged rope shall be promptly removed from service.
(d) Safety belts and life lines shall be inspected by a qualified person before each use. When fiber ropes show serious abrasion, broken fibers, cuts, fraying, or other defects, such defects shall be reported to the person in charge.
(e) When in use, the life line shall be secured so as to prevent it from being accidentally loosened or dislodged.
(f) Safety belts shall be of a type approved by the Division.




s 6982. Materials Storage and Handling.
(a) Materials shall be stored in conformance with the Housekeeping and Maintenance Standards of the General Industry Safety Orders.
(b) (16-3) Hazardous materials shall be stored and handled in conformance with Hot, Flammable, Poisonous, Corrosive, and Irritant Substances Standards of the General Industry Safety Orders.
(c) (16-4) Hazardous materials shall be labeled in conformance with the Labeling of Injurious Substances Standards of the General Industry Safety Orders.
(d) (4-18) (16-5) Compressed and liquid gas cylinders shall be stored and/or secured in conformance with the General Industry Safety Orders.
(e) (16-6) Valves on compressed gas cylinders shall be protected by covers when being transported or stored, and by a safe location when the cylinders are in use.
(f) (16-9) Men shall stay clear of suspended loads.
(g) (16-14) (16-15) Cranes and hoisting equipment for materials shall be constructed, operated, and maintained in conformance with the Cranes and Other Hoisting Equipment Standards of the General Industry Safety Orders.
(h) (16-11) Men shall not ride on loads being moved by cranes or derricks, nor shall they ride the hoisting hooks unless such method eliminates a greater hazard and the man is secured by a safety belt or equivalent.




s 6984. (3-1). Face or Bank of Pit.
(a) All reasonable precautions shall be taken to free the face or bank of the pit from loose materials that may be dangerous to employees.
(b) Where practicable, the face of the pit shall be given a slope so as to minimize the danger of rock falling on employees.
(c) (3-3) Whenever the division considers that the height and condition of the face constitutes a serious hazard to employees, it may require the installation of a bench or other suitable method of working.
(d) When a bench or multiple-bench method of operation is required, a setback of at least one-half the height of the single face or bank for each section of the face or bank shall be required.




s 6985. (3-1). Excavations of Sand, Gravel and Similar Material.
(a) Excavations in sand, gravel, or other material shall be sloped to an angle at which employees will not be endangered by falling or sliding materials.
(b) When determining the maximum permitted slope of the face, consideration shall be given to:

(1) Nature of the material being excavated.
(2) Extent to which the material is cemented or consolidated.
(3) Height of the face.
(4) Type and size of equipment used at the face and amount of protection this equipment affords the operator.
(5) Safety of employees who are not protected by such equipment.
(c) Where the face is composed of loose or unstable materials, the slope of the face shall not exceed 50 degrees where the height is greater than can be reached by the dipper or bucket of the excavator or loader being used.
(d) Where the face is composed of moderately compacted materials that are not firmly cemented or consolidated but which experience indicates will stand well in place, the slope shall not exceed 65 degrees where the height is greater than can be reached by the dipper or bucket of the excavator or loader being used.
(e) Where the face is composed of firmly cemented or consolidated materials that experience indicates do not shall or cave readily, the slope shall not exceed 80 degrees where the height is greater than can be reached by the dipper or bucket of the excavator or loader being used.




s 6986. (3-2). Overburden.
(a) No person shall be permitted under a face or bank where stripping operations constitute a hazard.
(b) Where employees are endangered by materials rolling or sliding down the slopes above a pit, such employees shall be removed from the danger area or shall be protected by barriers, baffle boards, screens, or other devices that afford equivalent protection.
(c) Loose, unconsolidated material shall be stripped for a safe distance, but in no case less than 10 feet from the top of pit or quarry walls, and the loose, unconsolidated material shall be sloped to the angle of repose.




s 6987. Floors of Pits and Quarries.
(a) Sufficient mapping or exploratory drilling shall be performed to locate dangerous underground excavations.
(b) Dangerous underground excavations shall be backfilled or otherwise controlled to prevent workers or mobile equipment from falling into such excavations.




s 6988. (3-8). Face Inspection and Control.
(a) A daily inspection shall be made of faces and banks where men are exposed to falling or rolling materials. The inspection shall be made by a competent person who shall dislodge or make safe any material dangerous to employees, or shall cause such material to be dislodged or made safe.
(b) (3-9) No person shall be permitted to work near a face made unsafe by primary blasting, rains, freezing or thawing weather, or earthquakes, until the face has been inspected and made safe.
(c) At least once a week, or oftener if necessary, a competent person shall inspect the top of the face or bank for cracks that may indicate the imminence of slides or movement of the face.
(d) (3-5) Overhanging banks in pits are forbidden, except in:
(1) Pits where material is moved away from the face by mechanical equipment having controls located at a safe distance so that no employee is required to approach the face in the course of normal operations.
(2) Hydraulic pits where the bank is undercut with a stream of water and the monitor is located at a safe distance from the bank.
(e) Where necessary, a watchman shall be employed at the face, to give warning when loose rock or other materials are about to fall.
The watchman shall be provided with a whistle, siren, or other device that will give adequate warning to employees in the pit.
The watchman shall have no other work to distract his attention from his duties as a watchman.
(f) Work shall not be permitted on or near any bank or face at night unless the bank or face above the working area is adequately illuminated to make any movement of rock or other material readily observable.
(g) Provision shall be made to keep employees away from dangerous areas that are not working places. Signs shall be posted warning employees to keep away, or such dangerous areas shall be barricaded or otherwise guarded.





s 6989. (3-4). Protection of Workers at the Face.
(a) No work shall be permitted above or below men at the face if such work endangers their safety.
(b) Workers at the face shall be protected as follows:
(1) On top of the bank, by fencing with guard rails or ropes, by using railed platform, or by using safety belts and life lines. This does not apply where the bank is less than 20 feet high, or the slope below is less than 50 degrees from the horizontal, or where no work is performed within 10 feet of the edge.
(2) On the face, by removing loose rock from over the working place, and by the use of safety belts and life lines, portable staging, boatswain chair, or skips especially designed for use at pit faces. If a boatswain chair is used, the employee shall be attached thereto with a safety belt and life line.
When necessary for safety, two or more persons shall be employed in cooperation with each other in drilling, blasting or removing loose rock.
(3) At the foot of the bank by removing loose rock from above the working place, and maintaining a ready way of exit to a place of safety.
(4) By any other means affording safety equivalent to that provided by (1), (2), and (3) of this subsection.
(c) (3-6) Men shall approach from above loose rock and areas to be scaled and shall scale from a safe location.

(d) (3-12) Men shall not work between equipment and the pit wall or bank where the equipment may hinder escape from falls or slides of the bank.
(e) (3-4) Safe means for scaling pit banks shall be provided. Hazardous banks shall be scaled before other work is performed in the hazardous bank area.




s 6990. (3-20). Timbering -General.
(a) Every working place in the mine shall when necessary be kept securely timbered or otherwise supported to prevent injury to employees from falling material.
(b) All miners shall be supplied at all times with the timbers or other adequate materials which are necessary to keep their working places in a safe condition.
(c) If for any cause necessary timbers are not available, work at that place shall cease until timbers are supplied.
(d) It is recommended that wood preservatives be used to increase the useful life of mine timbers. Such preservatives should be of a type which will not irritate the skin or increase the flammability of the timbers.




s 6991. Bearing Sets.
(a) Bearing sets shall be installed in all vertical shafts and in all inclined shafts where it is necessary to support the shaft timbers.
(b) Bearing sets shall be installed as close to the shaft collar as is practical, and along the shaft at necessary intervals.
It is recommended that the distance between bearing sets be not more than 100 feet.




s 6992. (17-1). Surface Illumination.
(a) Illumination sufficient to provide safe working conditions shall be provided in and on all surface structures, paths, walkways, stairways, switch panels, loading and dumping sites, and work areas. Also see 6988 (f).




s 6993. Illumination.
(a) Stationary lights shall be provided during working hours of all shaft stations during such time that they are in actual use.
(b) All places where hoists, pumps, or other machinery is operating in the proximity of persons in the mine shall be so lighted that the moving parts of such machinery can be readily distinguished.
(c) Where practical, electric lights shall be used for all stationary lighting in the mine. Electric lights shall be kept at a safe distance from flammable materials.
(d) No open-flame light shall be left burning unattended on or near flammable materials.
(e) No gasoline, oil, or liquefied petroleum gases shall be taken underground for illuminating purposes.
This does not prohibit the use of permissible flame safety lamps in the mine.
(f) (17-10) Miner's individual electric cap lamps shall be carried for illumination by all persons underground.




s 6995. Mining Equipment and Practices.
(a) (14-10) Handheld power tools, other than rock drills, shall be equipped with controls requiring constant hand or finger pressure to op erate the tools or shall be equipped with friction or other equivalent safety devices.
(b) (14-26) Unsafe equipment or machinery shall be removed from service immediately.
(c) (9-102) When a signalman is used during slushing operations, he shall be positioned in a safe place.
(d) (14-29) Repairs or maintenance shall not be performed on machinery until the power is off and the machinery is blocked against motion, except where machinery motion is necessary to make adjustments.
(e) (14-30) Men shall not work on or from a piece of mobile equipment in a raised position until it has been blocked in place securely. This does not preclude the use of equipment specifically designed as elevated mobile-work-platforms.
(f) (14-31) Drive belts shall not be shifted while in motion unless the machines are provided with mechanical shifters.
(g) (14-32) Belts, chains, and ropes shall not be guided onto power-driven moving pulleys, sprockets, or drums with the hands except on slow-moving equipment especially designed for hand feeding.
(h) (14-33) Pulleys of conveyors shall not be cleaned manually while the conveyor is in motion.
(i) (14-34) Belt dressing shall not be applied manually while belts are in motion unless an aerosol-type dressing is used.
(j) (14-35) Machinery shall not be lubricated while in motion where a hazard exists, unless equipped with extended fittings or cups.
(k) (14-45) Welding operations shall be shielded and well-ventilated.
( l) (14-1) (14-6) Power transmission and point-of-operation guarding shall be in conformance with the General Industry Safety Orders.
(m) (14-2) Overhead belts shall be guarded as required by the General Industry Safety Orders.
(n) (14-8) (14-9) Grinding machines and grinding wheels shall be operated in conformance with the Use, Care, and Protection of Abrasive Wheel Standards of the General Industry Safety Orders.





s 6996. (13-1). Boilers and Pressure Vessels.
(a) All boilers and pressure vessels shall be constructed, installed and maintained in accordance with the standards and specifications of the Boiler and Fired Pressure Vessel Safety Orders and the Unfired Pressure Vessel Safety Orders of the Division.
(b) (13-19) Repairs involving the pressure system of compressors, receivers, or compressed-air-powered equipment shall not be attempted until the pressure has been bled off.






s 6997. Air Hose.
(a) (13-21) The ends of every compressed air hose 1 inch or larger inside diameter shall be chained or otherwise secured to prevent whipping in case of a disconnected hose. When 2 or more hoses are connected to each other, the connecting ends shall be secured together.
(b) Material used to secure the hose ends shall be chain made of three-sixteenths-inch stock or of other material of equivalent strength.
(c) When an auxiliary compressed air tank is located on a jumbo or at any other place away from the rigid compressed air supply line, both ends of every length of connecting hose shall be secured.
(d) Air pipe lines 2 inches or more in diameter shall be adequately secured against unnecessary movement. Such pipe lines shall be protected against accidental impact from vehicles and falling objects at points where breakage of lines would constitute a hazard to employees.
(e) (13-20) At no time shall compressed air be directed toward a person. When compressed air is used, all necessary precautions shall be taken to protect persons from injury.






s 6998. Hydraulic Monitor.
(a) A safe, unobstructed working place shall be provided for the monitor operator.
(b) A positive safety latch shall be installed for securing the deflecting lever on all monitors. The deflecting lever shall be secured at all times when the monitor is not being moved by hand.





s 6999. Rock Crushers.
(a) Every rock crusher where an employee is required or permitted to be at, or near, an unguarded feed opening, shall be provided with adequate means whereby the power can be quickly disconnected in case of emergency. Such means of disconnecting the power shall be located at the crusher feed opening.
(b) A safe place shall be provided for employees at a crusher while cars or haulage vehicles are being unloaded.
(c) Adequate precautions shall be taken to prevent materials from being dumped into the crusher or crusher feeder while men are working therein.
(d) Employees working at a crusher shall be protected from falling into the crusher by one of the following means:
(1) By adequately guarding the crusher mouth.
(2) Use of a working platform located in such position that hung-up material in the crusher can be safely dislodged from the platform. The platform shall have a standard railing.
(3) When it is not practical to adequately guard the crusher mouth, a safety belt and life line shall be worn by employees working over the feed opening of an operating crusher. This life line shall be tied sufficiently short to prevent the wearer from getting into the crusher.
(4) By other equally safe means.

It is recommended that a wedge on a line, or hooks attached to an overhead hoist, be used to keep the crusher feed open.
(e) Before any repair work that may endanger the employee is started on a crusher, the prime mover shall be shut down, and where feasible rendered inoperable. A sign prohibiting starting shall be placed on the prime mover controls.






s 7000. Working Space for Machine Operators.
(a) Unobstructed working space shall be provided at the operating controls of every fixed machine. Such working space shall be at least 3 feet wide, and long enough to provide access to all operating controls.
(b) Adequate unobstructed working space shall be provided at the operating controls of every movable machine.
Such unobstructed working space shall be at least 3 feet wide and 6 1/2 feet in height, except when the operator works in a sitting position, in which case he shall be provided with an overhead clearance of at least 2 feet.
(c) Where the operating controls are located at the side of the machine, at least 2 feet of unobstructed space shall be maintained between the operating controls and the nearest wall or object while the machine is in operation.
(d) Boom and rocker-type mucking machines shall be equipped with a substantial device to keep them from upsetting.






s 7001. Power Shutoff for Underground Machines.
(a) In addition to the operating controls, a positive power shutoff shall be provided for every prime mover for use in the mine.
(b) The positive power shutoff shall be located where it is readily accessible to the machine operator and, except for hand-held machines and tools, not more than 10 feet from the machine. It is recommended that it be placed on the machine when practical.






s 7005. Drilling Operations.
(a) (7-2) Drilling machines shall b in good condition. The drill chucks shall be the proper size to keep the drills secured therein.
(b) Iron or steel hammers used for removing detachable bits shall be malleable or annealed, so that they will not readily chip or break while being used.
(c) It is strictly prohibited to drill in or deepen any hole that contains or may have contained explosives.
SURFACE

(d) No hole shall be drilled within 5 feet of any hole or chamber that contains or has contained explosives, and no hole shall be drilled at such an angle as to approach within 5 feet of such hole or chamber.
(e) (7-13) Drill holes for primary blasting shall be adequately covered or plugged to prevent injury to persons and keep materials from falling therein.
(f) (7-4) Men working on erected drill masts shall be safeguarded with elevated work platforms, standard railings, and toe-boards and protected by an approved safety belt and life line.
(g) (7-3) The drilling area shall be inspected for hazards before starting the drilling operations.
(h) (7-5) Drill crews and others shall stay clear of augers or drill stems that are in motion. Persons shall not pass under or step over a moving stem or auger.
(i) (7-8) When a drill is being moved from one drilling area to another, drill steel, tools, and other equipment shall be secured and the mast placed in a safe position.
(j) (7-10) In the event of power failure, drill controls shall be placed in the neutral position until power is restored.
(k) (7-12) While in operation, drills shall be attended at all times.
( l) (7-18) Men shall not hold the drill steel while collaring holes, or rest their hands on the chuck or centralizer while drilling.
(m) (7-11) The drill stem shall be resting on the bottom of the hole or on the platform with the stem secured to the mast before attempts are made to straighten a crossed cable on a reel.
(n) (8-2)-(8-5) The mandatory standards for rotary jet piercing of the U.S. Bureau of Mines for metal and nonmetallic open pit mines as published on July 31, 1969, February 25, 1970, and December 8, 1970, are adopted for control of surface rotary jet piercing hazards.




s 7006. Drilling Operation -Underground.
(a) No hole shall be drilled within 2 feet of any hole or chamber that contains or may contain explosives, and no hole shall be drilled at such an angle as to approach within 2 feet of such hole or chamber.
(b) Rock drilling operations shall be performed from a safe floor, platform, or staging which will provide a secure support for both the drilling machine and the operator.




s 7007. Jumbos -Construction and Use.
(a) Jumbo working platforms that are 30 inches or more in height shall be equipped with standard railings on open ends and sides, except where standard railings interfere with drilling operations, in which case they shall be provided with some other means of protection acceptable to the Division.
(b) Toeboards at least 4 inches high shall be provided around platforms of jumbos to prevent tools or other equipment from falling off.
(c) (7-8) Where drill steel is kept on jumbo platforms prior to or after use, suitable receptacles, such as boxes, racks, grooves, or equivalent, shall be provided for temporary storage.
(d) (7-8) No tools, materials, equipment, or other unattached objects shall remain on any platform while the jumbo is being moved, if any part of such protrudes beyond the width of the jumbo.
(e) (7-8) A safe means of access shall be provided to all jumbo platforms. Safe access may consist of a ramp, stair, or ladder constructed in compliance with the standards set forth in the General Industry Safety Orders.
(f) Where necessary, overhead protection against falling rock shall be provided at jumbo working areas.
(g) If bore holes are loaded from the jumbo, all electrical circuits to the jumbo shall be disconnected and the live ends removed to a minimum distance of 100 feet from the jumbo before explosives are brought to the heading.
(h) Warning must be given to men working below before starting to collar holes.
(i) When drill steel is hoisted by a power method, double slings with a tag line shall be used, or some other equally safe method shall be provided.




s 7010. Loading, Hauling, and Dumping -General.
(a) (9-2) Equipment defects affecting safety shall be corrected before the equipment is used.
(b) (9-31) When traveling between work areas, the equipment shall be secured in the travel position.
(c) (9-36) Electrically powered mobile equipment shall not be left unattended unless the master switch is in the off position, all operating controls are in the neutral position, and the brakes are set or other equivalent precautions are taken against rolling.
(d) (9-37) Mobile equipment shall not be left unattended unless the brakes are set. The wheels shall be turned into a bank or rib, or shall be blocked, when such equipment is parked on a grade.
(e) (9-60) Where overhead clearance is restricted, warning devices shall be installed and the restricted area shall be conspicuously marked.
(f) (9-64) Chute loading installations shall be designed so that the men pulling chutes are not required to be in a hazardous position while loading cars.
(g) (9-39) Employees shall not be permitted to get on or off moving vehicles or equipment.
Exception: This does not apply to train crews when operating trains or industrial railroads.
(h) (9-26) Only authorized persons shall be present in areas of loading or dumping operations.
(i) (14-13) Industrial trucks, tractors, haulage vehicles, and earthmoving equipment shall meet the canopy, roll-over protection, and other requirements of the General Industry Safety Orders.




s 7011. Parts of Shovels, Draglines, and Hoisting Equipment Subject to Wear.
(a) The employer shall require that wire ropes, bearings, friction clutches, chain drives, and other parts subject to wear be inspected at adequate intervals in order that any unsafe conditions may be corrected.
(b) The division may require properly dated detailed reports of such inspections to be made in places of employment where there is doubt as to proper supervision over safe maintenance of hoisting equipment.
(c) The intervals between the inspections shall be short enough to enable the employer to be reasonably certain that the crane, hoist, derrick, excavating or loading equipment will not be operated when in an unsafe condition.
(d) (9-3) Mechanically or electrically operated brakes shall be inspected periodically, and necessary repairs and adjustments shall be made.




s 7012. Cranes, Draglines, Shovels, and Loading Devices.
(a) The control area for every crane or other lifting device, and for every power-driven shovel or loading device, shall be protected with a strong guard where there is danger from falling or flying materials.
(b) (9-11) All glass in the windows of the cab shall be safety glass of a type approved by the State Department of Motor Vehicles.
(c) The crane, excavator, or loader shall be equipped with a signaling device that may be heard above the usual noises in the pit.
(d) When loading where there is a probability of dangerous slides, the wheels or treads of loading equipment, other than railroad shovels, shall be turned in the direction which will most facilitate escape in case of danger.
(e) (9-30) Employees shall not be permitted under suspended loads or buckets.
(f) (9-27) Any person desiring to go on board any shovel, crane, or dragline which is in operation shall first signal the operator of such equipment. He shall not go aboard until the operator stops the equipment and signals that it is safe to proceed.
(g) (9-5) The operator of any crane, dragline, shovel, or loader shall signal other persons in the vicinity before he begins operations or moves the equipment.
(h) The shovel, loader, dragline, or crane shall not be started to travel until it is first determined that the travel way is clear of persons and equipment.
(i) When equipment is traveling under its own power, the operator shall so turn his cab that he has clear vision in the direction of travel.
(j) (9-25) Where practicable, haulage vehicles shall be loaded in such way that the bucket or boom does not pass over the vehicle driver's position. If the bucket or boom has to pass over the driver's position, no loading shall be done until the driver is in a safe location away from his vehicle.
(k) (9-32) The crane, excavator, or loader shall not be left unattended until the load or bucket is lowered to the ground.
( l) (9-61) Stockpile and muckpile faces shall be trimmed to prevent hazards to personnel.
(m) (9-62) Rocks too large to be handled safely shall be broken before loading.




s 7014. Private Roads.
(a) When building private roads, consideration shall be given to the following factors:
(1) Type of material to be used for road bed and surfacing.
(2) Type of equipment that will travel on the road.

(3) Size of loads to be hauled.
(4) Length, and percent of grades.
(5) Degree of curvature and visibility on turns.
(b) Bridges shall be substantially constructed and maintained in good repair. They shall not be subjected to loads greater than they were designed to support.
(c) Grades shall be commensurate with the safe operating limits of the equipment used.
(d) Single lane roads with two-way traffic shall be provided with adequate turnouts where practicable. Where adequate turnouts are not practicable, a control system shall be provided to prevent vehicles from meeting on such single lane roads.
(e) Roads used for two-way traffic on which vehicles do not travel on the right side all the way shall be posted with signs indicating the side of the road to travel.
(f) Roads should be maintained free from holes and deep ruts. Action should be taken to keep the dust to a minimum.
(g) (9-22) Mid-axle height berms or guards shall be provided on the outer bank of elevated roadways.
(h) (9-54) Berms, bumper blocks, safety hooks, or similar means shall be provided to prevent overtravel and overturning at dumping locations.
(i) (9-59) Public and permanent railroad crossings shall be posted with warning signs or signals, or shall be guarded when trains are passing and shall be planked or otherwise filled between the rails.
(j) When the Division considers that a serious hazard exists to employees because of traffic or haulage conditions in a mine, it may require the employer to establish a system of traffic control satisfactory to the Division.




s 7015. Haulage Vehicle Definition.
Haulage vehicle as used in this article means any vehicle other than railroad cars or locomotives used to transport the product of a pit. In addition to self-propelled trucks, the term "haulage vehicle" includes tractors, trailers, and all other similar equipment used for such transportation.




s 7016. Haulage Vehicle, Construction and Maintenance.
(a) (9-11) Every haulage vehicle shall be in compliance with the California Motor Vehicle Code except for:
(1) Lights;
(2) Weight limits;
(3) Width and height;

(4) Installation of windshields.
This article does not require the installation of windshields on haulage vehicles but if windshields are installed, they shall be in compliance with the provisions of the California Motor Vehicle Code.
(b) Equipment and accessories installed on haulage vehicle shall be so arranged as to not seriously impair the driver's vision to the front or sides.
(c) (9-3) All haulage vehicles, including trailers, shall be equipped with brakes or other holding device adequate to hold such vehicle with the maximum load on the maximum grade on which it is used. Brakes shall be maintained in good condition.
(d) (9-3) The brakes on motor vehicle trailer combinations shall be so designed that failure of the trailer brakes will not affect those of the motor driven vehicle.
(e) The use of a counter-torque device is recommended on haulage vehicles operating on grades.
(f) Haulage vehicles operated at night shall be equipped with adequate headlights and at least one taillight in good condition.
(g) Every self-propelled haulage vehicle shall be equipped with a warning device which can be clearly heard for a distance of 200 feet from the vehicle.
(h) Haulage vehicles shall be provided with a safe means of access from the ground to the driver's location. Such means of access shall be maintained in good condition.
(i) The vehicle seat shall be maintained in good repair at all times.
(j) Liquids shall be drained from the compressed air tanks each day.
(k) (9-69) Tires shall be deflated before repairs on them are started and adequate means shall be provided to prevent wheel locking rims from creating a hazard during tire inflation.
( l) (9-81) Trucks, shuttle cars, and front-end loaders operated on the surface shall be equipped with emergency brakes separate and independent of the regular braking system when generally available for a particular class of equipment.




s 7018. Trackless Mine Haulage -Equipment and Practices.
(a) Every trackless haulage vehicle shall be provided with adequate power to carry its load safely up any grade over which it operates.
(b) A safe seat shall be provided for the operator of the vehicle. The seat shall be constructed so it will prevent the operator from slipping over the back or sides of the seat.
(c) Haulage vehicles shall be equipped with headlights and at least one taillight in good condition.
Such vehicles shall be equipped with backup lights which function automatically when the vehicle is put in reverse gear.




s 7020. (9-25). Canopy Guard.
(a) Except as provided in subsection (d) of this section every haulage vehicle that is loaded by means of any device which employs a swinging boom to load the vehicle shall be equipped with a suitable canopy guard for the driver's seat.
(b) The canopy guard shall be strongly constructed to afford adequate protection for the driver. It shall be of sufficient width and height so as not to hamper the movement of the driver or prevent his immediate escape from the vehicle in emergency.
(c) The canopy shall be steel plate at least three-sixteenths inch thick. It shall be substantially supported by steel members of adequate strength attached to the frame or body of the vehicle.
(d) A canopy guard is not required on any haulage vehicle which is provided with a cab so constructed that it will afford at least as much protection as a canopy guard.




s 7021. Haulage Vehicle Operation Procedure.
(a) When operating vehicles, consideration shall be given to the condition of the roadway, weather, curves,grades and mechanical condition of the vehicle. (continued)