ARTICLE II-A
DIESEL-POWERED EQUIPMENT

Exhaust Emissions Control Approval Checklist

Section 203-A. Exhaust Emissions Control

(a)(1) Underground diesel-powered equipment shall include an exhaust emissions control and conditioning system that has been laboratory tested with the diesel engine, except as provided in Section 203-A (3) using the ISO 8178-1 test, and has resulted in diesel particulate matter (DPM) emissions that do not exceed an average concentration of 0.12 mg over m to the third power when diluted by one hundred percent of the MSHA approval plate ventilation rate for that diesel engine.

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(2) The exhaust emissions control and conditioning system shall be required to successfully complete a single series of laboratory tests conducted at a laboratory accepted by the secretary for each diesel engine, except as provided in Section 203-A (3).

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(b) The exhaust emissions control and conditioning system shall include the following:

(1) A DPM filter capable of an average of ninety-five percent or greater reduction of DPM emissions.

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(2) An oxidation catalyst or other gaseous emissions control device capable of reducing undiluted carbon monoxide emissions to 100 ppm or less under all conditions of operation at normal engine operating temperature range.

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(3) An engine surface temperature control capable of maintaining significant external surface temperatures below three hundred two degrees Fahrenheit.

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(4) A heat exchanger capable of reducing the exhaust gas temperature below three hundred two degrees Fahrenheit.

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(5) An automatic engine shutdown system that will shut off the engine before the exhaust gas temperature reaches three hundred two degrees Fahrenheit and, if waterjacketed components are used, before the engine coolant temperature reaches two hundred twelve degrees Fahrenheit. A warning shall be provided to alert the equipment operator prior to engine shutdown.

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(6) A spark arrestor system.

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(7) A flame arrestor system.

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(8) A sampling port for measurement of undiluted and untreated exhaust gases as they leave the engine.

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(9) A sampling port for measurement of treated undiluted exhaust gases before they enter the mine atmosphere.

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(10) For inby diesel equipment, any additional requirements of MSHA regulations at 30 CFR Part 36 (relating to mobile diesel-powered transportation equipment for gassy noncoal mines and tunnels).

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ARTICLE II-A
DIESEL-POWERED EQUIPMENT

Diesel Equipment Approval Checklist

Section 203-A. Exhaust Emissions

(c) On-board engine performance and maintenance diagnostics systems shall be capable of continuously monitoring and giving readouts for paragraphs (1), (2), (3), (4), (5), (6), (7), and (8) of this subsection. The diagnostics system shall identify levels that exceed the engine and/or component manufacturer's recommendation or the applicable MSHA or bureau requirements as to the following:

(1) Engine speed.

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(2) Operating hour meter.

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(3) Total intake restriction.

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(4) Total exhaust back pressure.

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(5) Cooled exhaust gas temperature.

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(6) Coolant temperature.

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(7) Engine oil pressure.

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(8) Engine oil temperature.

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Diesel Equipment Approval Checklist

Section 204-A. Ventilation

(b) Each specific model of diesel-powered equipment shall be approved by the department before it is taken underground. The department shall require an approval plate that must be attached to each piece of the diesel-powered equipment. The approval plate shall specify the minimum ventilating air quantity for the specific piece of diesel-powered equipment. The minimum ventilating air quantity shall be determined by the bureau based on the amount of air necessary at all times to maintain the exhaust emissions at levels not exceeding the exposure limits established in Section 219-A.

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Section 206-A. Transfer of diesel fuel

(b) When diesel fuel is transferred by means of a pump and a hose equipped with a nozzle containing a self-closing valve, a powered pump may be used only if:

(1) The hose is equipped with a nozzle containing a self-closing valve without a latch-open device; and

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(2) The pump is equipped with an accessible emergency shutoff switch.

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(e) Diesel fuel piping systems shall be designed and operated as dry systems.

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(f) All piping, valves, and fittings shall meet the following:

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(1) Be capable of withstanding working pressures and stresses.

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(2) Be capable of withstanding four times the static pressures.

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(3) Be compatible with diesel fuel.

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(4) Be maintained in a manner that prevents leakage.

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Diesel Equipment Approval Checklist

Section 208-A. Fire Suppression

(a) Fire suppression systems for diesel-powered equipment and fuel transportation units shall meet the requirements of this section.

(b) The system must be an automatic multipurpose dry-powder type fire suppression system suitable for the intended application and listed or approved by a nationally recognized independent testing laboratory. Installation requirements are as follows:

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(1) The system shall be installed in accordance with the manufacturer's specifications and the limitations of the listing or approval.

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(2) The system shall be installed in a protected location or guarded to minimize physical damage from routine operations.

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(3) Suppressant agent distribution tubing or piping of the system shall be secured and protected against damage, including pinching, crimping, stretching, abrasion, and corrosion.

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(4) Discharge nozzles of the system shall be positioned and aimed for maximum fire suppression effectiveness in the protected areas. Nozzles shall also be protected against the entrance of foreign materials such as mud, coal dust, or rock dust that could prevent proper discharge of suppressant agent.

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(c) The fire suppression system shall provide automatic fire detection and suppression for all of the following:

(1) The engine, transmission, hydraulic pumps and tanks, fuel tanks, exposed brake units, air compressors and battery areas, as applicable, on all diesel-powered equipment.

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(2) Fuel containers and electric panels or controls used during fuel transfer operations on fuel transportation units.

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(d) The fire suppression system shall include a system fault and fire alarm annunciator that can be seen and heard by the equipment operator.

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(e) The fire suppression system shall provide for automatic engine shutdown. Engine shutdown and discharge of suppressant agent may be delayed for a maximum of fifteen seconds after the fire alarm annunciator alerts the operator.

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(f) At least two manual actuators shall be provided with at least one manual actuator at each end of the equipment. If the equipment is provided with an operator's compartment, one of the mechanical actuators shall be located in the compartment within easy reach of the operator. For stationary equipment, the two manual actuators shall be located with at least one actuator on the stationary equipment and at least one actuator a safe distance away from the equipment and in intake air.

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Department’s equipment specific performance specification checklist should be included where applicable.

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Verification that the equipment incorporates an engine and emission control system that has been approved by the Department.

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ARTICLE II-A
DIESEL-POWERED EQUIPMENT

Mine Operating Plan Approval Checklist

Section 203-A Fuel Quality Control

(d) The DPEP shall include a quality control plan for assuring that the diesel fuel used shall be a low volatile hydrocarbon fuel classified as ASTM D975 fuel with a cetane index of at least 45, a maximum aromatic content of thirty-five percent, a sulfur mass of less than five hundredths of one percent and a flash point of one hundred degrees Fahrenheit or greater at standard temperature and pressure.

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Section 211-A. Fueling

(a) Fueling of diesel-powered equipment shall not be conducted in the intake escapeway unless the mine design and entry configuration make it necessary. In those cases where fueling in the intake escapeway is necessary, the mine operator shall submit a plan for approval to the department outlining the special safety precautions that will be taken to insure the protection of miners. Such plan shall specify a fixed location where fueling will be conducted in the intake escapeway and all other safety precautions that will be taken, which shall include an examination of the area for spillage or fire by a qualified person.

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Mine Operating Plan Approval Checklist

Section 220-A. Training and general requirements

(a) All training course instructors and all training plans required by this section and Sections 221-A and 222-A shall be approved by the department. Operator training and qualification shall meet the requirements of this section.

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(b) Training shall be conducted in the basics of the operation of a diesel engine, Federal and State regulations governing their use, company rules for safe operation, specific features of each piece of equipment and the ability to recognize problems and shall be provided to each equipment operator and the mine health and safety committee if one exists. This training shall be designed to bring every operator to a level of good understanding of diesel equipment operation. Each operator will be qualified by attending a minimum eight-hour course, including classroom training on diesel fundamentals and equipment-specific hands-on training on the job.

(d) Refresher training, separate from that required by MSHA regulations at 30 CFR Part 48 (relating to the training and retraining of miners), shall be required annually.

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(e) The minimum eight-hour training required by subsection (b) shall include instruction in the following classroom subjects:

(1) Engine fundamentals, which shall include an introduction to the function of a diesel engine and recognition of all major components and their functions.

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(2) Diesel regulations, which shall include an introduction to Federal and State regulations governing the use of diesel equipment.

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(3) Diesel emissions, which shall include an introduction to diesel emissions and their adverse health effects.

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(4) Factors that affect diesel emissions, which shall include a detailed presentation of engine faults and diesel fuel quality and their effect on emissions and the preventive actions that can be taken to minimize emissions levels.

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(5) Emissions control devices, which shall include a detailed presentation of the different emissions control devices employed to reduce emissions and details about actions the operator must take to keep the devices in working order.

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(6) Diagnostic techniques, which shall include a presentation of techniques that can be employed by the operator to assure the equipment is in safe operating condition and instruction about how to recognize and diagnose certain engine faults that may cause increases in emissions.

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(7) The preoperational inspection, which shall include a presentation of the purpose, benefits and requirements of the preoperational inspection.

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(8) Ventilation, which shall include an introduction to special ventilation requirements for areas where diesel-powered equipment will operate.

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(9) Fire suppression system, which shall include an introduction to the fire suppression system and its function and when and how to activate the fire suppression manually.

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(10) Operating rules, which shall include a detailed presentation of the driving rules, safe driving speeds, traffic control devices and equipment limitations.

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(11) Emergency procedures, which shall include discussion of emergency situations, such as fire, diesel fuel spills, component failure, loss of ventilation air and emergency escape procedures and discussion of the potential use of the diesel-powered vehicle as an emergency escape vehicle in case of a mine emergency situation.

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(12) Recordkeeping and reporting procedures, which shall include a presentation on required recordkeeping and reporting procedures for problems or unsafe conditions, high emissions level and preoperational inspections made by the equipment operator.

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Mine Operating Plan Approval Checklist

Section 221-A. Equipment-specific training

Equipment-specific hands-on orientation training shall be given in an area of the mine where the equipment will be operated. This orientation shall be specific to the type and make of the diesel machine and shall be presented in small groups. The following subjects shall be included in the training:

(1) Equipment layout, which shall include familiarization with the layout of the equipment, the operator's compartments and the controls.

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(2) Preoperation inspection, which shall include familiarization with the preoperation inspection procedure and review of specific details of the inspection and location of the components to be inspected.

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(3) Equipment limitations, which shall include instruction relating to equipment performance, speeds, capacities and blind areas.

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(4) Operating areas, which shall include instruction relating to areas in which the equipment may be operated.

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(5) Operation, which shall include familiarization with the controls, gauges and warning devices and safe operating limits of all indicating gauges.

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(6) Refueling procedure, which shall include familiarization with fuel handling, permissible refueling areas, spill prevention, cleanup and potential hazards from diesel fuel.

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(7) Emergency devices, which shall include instruction relating to the location and use of the fire extinguisher and fire suppression devices.

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(8) Driving practice, which shall include supervised operation of the equipment.

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Mine Operating Plan Approval Checklist

Section 222-A. Diesel mechanic training

(c) To be qualified, a diesel mechanic must successfully complete a minimum of sixteen hours of a training program approved by the department regarding the general function, operation, maintenance and testing of emissions control and conditioning components. The diesel mechanic must be qualified to perform these tasks on the specific machines used at the mine or mines where they are employed. Additional engine-specific training shall be provided to diesel mechanics in accordance with a plan approved by the department.

(d) Annual retraining programs for diesel mechanics shall be required and approved by the department. The annual retraining shall include refresher training as well as new procedure and new technology training as necessary. Such training shall be separate from refresher training pursuant to MSHA regulations at 30 CFR Part 48 (relating to training and retraining of miners) and electrical training required by MSHA.

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(e) The minimum sixteen-hour diesel mechanic training programs shall be submitted for approval to the department and shall include training in the following minimum subject requirements:

(1) Federal and State requirements regulating the use of diesel equipment.

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(2) Company policies and rules related to the use of diesel equipment.

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(3) Emissions control system design and component technical training.

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(4) On-board engine performance and maintenance diagnostics system design and component technical training.

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(5) Service and maintenance procedures and requirements for the emissions control systems.

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(6) Emissions testing procedures and evaluation and interpretation of test results.

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(7) Troubleshooting procedures for the emissions control systems.

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(8) Fire protection systems test and maintenance.

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(9) Fire and ignition sources and their control and elimination.

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(10) Fuel system maintenance and safe fueling procedures.

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(11) Intake air system design and components technical training and maintenance procedures.

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(12) Engine shutdown device tests and maintenance.

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(13) Special instructions regarding components, such as the fuel injection system, that shall only be repaired and adjusted by a qualified mechanic who has received special training and is authorized to make such repairs or adjustments by the component manufacturer.

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(14) Instruction on recordkeeping requirements for maintenance procedures and emissions testing.

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(15) Other subjects determined by the department to be necessary to address specific health and safety needs.

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