jswizzle3737/ontario_laws_and_regs huggingface dataset:
28. (1) Fire extinguishing equipment of suitable type and size for use on a fire shall be provided, (a)  at a fire hazard area; (b)  where an electrical installation or equipment may be a fire hazard; (c)  in or about a headframe; (d)  in a building or structure on surface where a fire might endanger the mine entrance; and (e)  at a shaft station in an underground mine.  R.R.O. 1990, Reg. 854, s. 28 (1). (2) A fire suppression system consisting of sprinklers, foam or other suitable means of suppressing fire shall be provided, (a)  in an underground mine, (i)  on equipment containing more than 100 litres of flammable hydraulic fluids, (ii)  in every storage area where more than 500 litres of oil, grease or flammable liquids are stored, (iii)  in every service garage, and (iv)  in every permanent fuelling station; and (b)  on the surface, in a building or structure, except a fan house, located above or adjacent to an opening to an underground mine.  R.R.O. 1990, Reg. 854, s. 28 (2); O. Reg. 486/99, s. 1. (3) At least once each month in an underground mine, (a)  fire extinguishing equipment; (b)  fire suppression systems; (c)  fire hydrants; and (d)  fire doors, shall be inspected by a competent person who shall report in writing thereon to the supervisor in charge of the underground mine.  R.R.O. 1990, Reg. 854, s. 28 (3).
29. (1) In an underground mine or in or about a headframe or shaft house, flammable refuse shall be, (a)  deposited in covered, fire-resistive containers; and (b)  removed at least once a week from the mine or headframe or shaft house.  R.R.O. 1990, Reg. 854, s. 29 (1). (2) Scrap timber shall safely be disposed of or removed from an underground mine.  R.R.O. 1990, Reg. 854, s. 29 (2). (3) A written report certifying that there is no accumulation of flammable refuse in the area under his or her supervision shall be made weekly by a supervisor to the supervisor in charge of the mine.  R.R.O. 1990, Reg. 854, s. 29 (3).
30. (1) Oil, grease and other flammable material shall not be kept or stored in a shafthouse or in a portal house.  R.R.O. 1990, Reg. 854, s. 30 (1). (2) Oil, grease and flammable liquids with a flashpoint below 52º Celsius shall, (a)  when being used underground, be transported and stored only in, (i)  metal containers or receptacles, or (ii)  portable containers or safety cans that meet the requirements of either CSA Standard B376:22, “Portable Containers for Gasoline and Other Petroleum Fuels” or ANSI/CAN/UL/ULC 30:2022, “Metallic and Nonmetallic Safety Cans for Flammable and Combustible Liquids”; and (b)  when stored underground, be restricted in quantity to the requirement for, (i)  the current day’s work in the case of volatile flammable liquids, and (ii)  seven days in the case of oil and grease. R.R.O. 1990, Reg. 854, s. 30 (2); O. Reg. 584/91, s. 2; O. Reg. 34/14, s. 3 (1); O. Reg. 69/23, s. 7. (3) No device for the generation of acetylene gas shall be used in an underground mine.  R.R.O. 1990, Reg. 854, s. 30 (3). (4) No internal combustion engine that uses gasoline, propane or other volatile substance as a fuel shall be used in an underground mine.  R.R.O. 1990, Reg. 854, s. 30 (4). (5) Except when used for burning or cutting, propane or other similar fuel that is heavier than air when in a gaseous state shall not be permitted to be or be kept underground.  R.R.O. 1990, Reg. 854, s. 30 (5). (6) When propane or other similar fuel that is heavier than air is being used underground for burning or cutting, the cylinders for the fuel shall be of a type approved by Transport Canada and shall not be larger than five kilograms in capacity.  R.R.O. 1990, Reg. 854, s. 30 (6); O. Reg. 34/14, s. 3 (2).
31. No worker shall build or set a fire in an underground mine unless the worker is specifically authorized to do so and has immediately available suitable fire extinguishing equipment.  R.R.O. 1990, Reg. 854, s. 31.
32. Every workshop and lunchroom in an underground mine shall, (a)  be constructed of material with at least a one hour fire-resistance rating; and (b)  be located and maintained so as to reduce the fire hazard to a minimum.  R.R.O. 1990, Reg. 854, s. 32.
33. A structure housing a fan used in connection with a ventilation system for an underground mine shall be constructed of noncombustible material.  R.R.O. 1990, Reg. 854, s. 33; O. Reg. 167/16, s. 1.
34. (1) A fire hazard area shall be identified by suitable warning signs.  R.R.O. 1990, Reg. 854, s. 34 (1). (2) Except where special precautions are taken and written instructions issued, no use of matches, smoking or other means of producing heat or fire shall be permitted in a fire hazard area.  R.R.O. 1990, Reg. 854, s. 34 (2).
35. (1) If a flow of flammable gas is encountered in a mine or in an enclosed building housing a diamond drill on the surface and the concentration of the flammable gas is unknown, (a)  all sources of ignition in the affected area shall be eliminated; (b)  all electrical equipment in the affected area shall be de-energized; (c)  the affected area shall be evacuated; (d)  precautions shall be taken to prevent persons from entering the affected area inadvertently; (e)  a supervisor shall be notified; (f)  the affected area shall be tested by a competent person; and (g)  the affected area shall be designated as a fire hazard area.  O. Reg. 236/99, s. 3. (2) Subject to subsections (3), (4) and (5), work may resume if the concentration of flammable gas is below 1.0 per cent.  O. Reg. 236/99, s. 3. (3) If the concentration is less than 0.25 per cent and the affected area is tested periodically to ensure that the level of concentration is known, no precautions are required.  O. Reg. 236/99, s. 3. (4) If the concentration is 0.25 per cent or greater but not more than 0.5 per cent, all of the following precautions shall be taken: 1.  The supervisor shall provide written instructions of any special precautions. 2.  The instructions, if any, shall be communicated to the workers. 3.  The affected area shall be designated as a fire hazard area. 4.  The affected area shall be tested at least once per shift before work begins and, again, on release of any further flow of gas. 5.  A flammable gas detector shall remain in the affected area for the purpose of continued testing.  O. Reg. 236/99, s. 3. (5) If the concentration is 0.5 per cent or greater but not more than 1.0 per cent, all of the precautions set out in subsection (4) shall be taken and the electrical equipment, diesel engines, tools and other material used in the workplace shall be designed to function safely in a flammable gas atmosphere.  O. Reg. 236/99, s. 3. (6) If concentrations of flammable gas exceed 1.0 per cent in an area, all of the following precautions shall be taken: 1.  All sources of ignition in the affected area shall be eliminated. 2.  All electrical equipment in the affected area shall be de-energized. 3.  All persons, other than competent persons necessary to measure the concentration of flammable gas and to make ventilation changes, shall be removed from the affected area.  O. Reg. 236/99, s. 3. (7) In mines where flammable gas is known to occur, workers who are underground or diamond drillers who are on the surface shall be advised of, (a)  the probability of encountering a flow of the gas; and (b)  the measures and procedures prescribed in this section.  O. Reg. 236/99, s. 3. (8) For the purposes of this section, the concentration of flammable gas means the percentage, by volume, of flammable gas in the general atmosphere.  O. Reg. 236/99, s. 3.
36. (1) Where a blow torch or welding, cutting or other hot work equipment is used underground, or in a headframe, shaft house or other surface building in which a fire may endanger the mine entrance or the underground workings, a procedure for the safe use of hot work equipment shall be prepared in writing and signed by the supervisor in charge of the mine.  R.R.O. 1990, Reg. 854, s. 36 (1). (2) Only a worker who is a competent person or is under the direction of a competent person shall use hot work equipment.  R.R.O. 1990, Reg. 854, s. 36 (2). (3) In addition to the hot work procedure required by subsection (1), written instructions shall be issued to the worker by a supervisor before the hot work equipment is used respecting, (a)  the type of work; (b)  the location of the work; (c)  when the work is to be done; and (d)  any special measures and procedures to be taken before, during and after the work.  R.R.O. 1990, Reg. 854, s. 36 (3). (4) Where hot work equipment is used in a shaft, timbered area or fire hazard area, (a)  the area adjacent to the particular workplace shall be wet down, (i)  before the work is begun, and (ii)  when the work is stopped and the worker using the hot work equipment intends to leave; (b)  the area adjacent to the particular workplace shall be examined for potential fire hazards, (i)  before the work is begun, and (ii)  when the work is stopped and the worker intends to leave the area, and (iii)  on at least one other occasion approximately two hours after the work is stopped; (c)  fire-fighting equipment suitable for extinguishing any potential fire shall be available; and (d)  workers shall be protected from fumes, vapours or gases by, (i)  ventilation, or (ii)  the wearing of respirators.  R.R.O. 1990, Reg. 854, s. 36 (4). (5) Subsection (1) does not apply to hot work being performed in a repair station or garage protected by a fire suppression system.  R.R.O. 1990, Reg. 854, s. 36 (5). (6) Clause (4) (a) does not apply where the wetting down will create a hazard because of freezing or the presence of electrical equipment.  R.R.O. 1990, Reg. 854, s. 36 (6).
37. (1) Except during the initial stages of exploration and development of an underground mine, in addition to the opening through which workers are let into or out of the mine and the ore extracted, a separate escapement exit shall be provided.  R.R.O. 1990, Reg. 854, s. 37 (1); O. Reg. 265/15, s. 4. (2) The escapement exit required by subsection (1) shall be, (a)  located more than thirty metres from the main hoisting shaft or ramp; (b)  of sufficient size to afford an easy passageway; (c)  where necessary, provided with ladders from the deepest workings to the surface; (d)  marked on all levels by signs and arrows pointing the way of exit in a manner to expedite escape; (e)  made known to all underground workers who shall be instructed as to the route to the escapement exit; and (f)  inspected at least once a month by a competent person who shall give a written report of such inspection to the supervisor in charge of the mine.  R.R.O. 1990, Reg. 854, s. 37 (2). (3) A structure covering the escapement exit shall be constructed of material with at least a one hour fire-resistance rating.  R.R.O. 1990, Reg. 854, s. 37 (3).
38. (1) Subject to subsection (2), unless there is a second means of exit from an underground mine, no building shall be erected within fifteen metres of any closed-in part of a headframe or portal house.  R.R.O. 1990, Reg. 854, s. 38 (1). (2) A building erected within fifteen metres of any closed-in part of a headframe or portal house shall be constructed of material with at least a one hour fire-resistance rating.  R.R.O. 1990, Reg. 854, s. 38 (2). (3) No steam boiler or diesel engine shall be installed in such a manner that any part thereof is within thirty metres of the centre of the collar of a shaft or other entrance to a mine.  R.R.O. 1990, Reg. 854, s. 38 (3). (4) No internal combustion engine shall be installed, serviced, garaged or stored in or within fifteen metres of the building housing the hoist nor within thirty metres of the centre of the collar of a shaft or other entrance to a mine.  R.R.O. 1990, Reg. 854, s. 38 (4). (5) Except for the fuel tanks of motor vehicles, no gasoline or liquid fuel shall be stored within thirty metres of the centre of the collar of a shaft or other entrance of a mine.  R.R.O. 1990, Reg. 854, s. 38 (5). (5.1) Subsections (3), (4) and (5) do not apply with respect to a diesel engine and an attached diesel fuel tank (other than an engine installed on a motor vehicle) if, (a)  the engine and tank are enclosed by a structure constructed of material that has a fire-resistance rating of at least one hour; (b)  the structure separates the enclosed area from the hoist or a shaft or other entrance to a mine; and (c)  the enclosed area has a fire suppression system and an automatic fire alarm.  O. Reg. 272/97, s. 10. (6) The natural drainage shall drain away from the shaft collar or other mine entrance.  R.R.O. 1990, Reg. 854, s. 38 (6). (7) Where a hoist is located above the mine shaft, the supporting and enclosing structures shall be constructed of material with at least a one hour fire-resistance rating.  R.R.O. 1990, Reg. 854, s. 38 (7).
39. Fire doors in an underground mine shall, (a)  where practical, be installed to close off the shaft or main entrance to the mine and the mine openings directly associated with it from the other workings; (b)  be installed to close off, (i)  service garages, and (ii)  oil storage areas where a total of more than 500 litres of oil, grease or flammable liquid are stored; (c)  have at least a one hour fire-resistance rating; and (d)  be maintained in proper order and kept clear of all obstructions so as to be readily usable at all times.  R.R.O. 1990, Reg. 854, s. 39.
40. (1) Where, in an underground or tower mounted hoistroom, the normal air supply may become contaminated in an emergency, uncontaminated air shall be available to the hoist operator and cagetender by means of, (a)  an enclosed booth with a positive supply of uncontaminated air; or (b)  one or more units of self-contained demand air or oxygen breathing apparatus, together with a fully charged cylinder of compressed air of at least 8.5 cubic metres capacity.  R.R.O. 1990, Reg. 854, s. 40 (1). (2) Every hoist operator and cagetender who may be required to use demand breathing apparatus shall be competent in its use.  R.R.O. 1990, Reg. 854, s. 40 (2).
41. (1) Procedures in case of a fire at, (a)  the surface of an underground mine; (b)  a surface mine; or (c)  a mining plant, shall be prepared by the supervisor in charge of the mine or mining plant.  R.R.O. 1990, Reg. 854, s. 41 (1). (2) The procedures required by subsection (1) or extracts therefrom shall be set out in writing and shall be posted and kept posted in a conspicuous place or places where they are most likely to come to the attention of a worker.  R.R.O. 1990, Reg. 854, s. 41 (2). (3) A suitable number of workers at each mine and mining plant shall be trained in the fire-fighting procedures and, (a)  the names of such workers shall be posted in a conspicuous place; (b)  such workers shall be tested for proficiency at least once a year; and (c)  a written report of the results of the tests shall be made and kept on file.  R.R.O. 1990, Reg. 854, s. 41 (3). (4) Fire-extinguishing equipment of a suitable type and size shall be provided at, (a)  the surface of every underground mine; (b)  every surface mine; and (c)  mining plant.  R.R.O. 1990, Reg. 854, s. 41 (4). (5) At least once each month, the, (a)  fire-extinguishing equipment; (b)  fire suppression systems; (c)  fire hydrants; and (d)  fire doors, at the surface of an underground mine, a surface mine and a mining plant shall be inspected by a competent person who shall report thereon to the supervisor in charge of the mine or mining plant, as the case may be.  R.R.O. 1990, Reg. 854, s. 41 (5).
42. (1) The fuel tank of an internal combustion engine installed in a building shall be arranged so that the transfer of fuel to the tank takes place at a point outside the building and the fuel is conducted to the tank in a tightly jointed pipe or conduit.  R.R.O. 1990, Reg. 854, s. 42 (1). (2) The air displaced from the fuel tank shall be conducted to a safe point outside the building before being discharged into the atmosphere.  R.R.O. 1990, Reg. 854, s. 42 (2).
43. Any dangerous, flammable or explosive material or substance in a solid, liquid or gaseous state, or any combination thereof, other than explosive, that is kept, stored or handled, in a mining plant shall, (a)  be kept in a container that is suitable having regard to the nature and state of the material or substance; (b)  have labels on the container identifying the material or substance and warning of the hazards involved therewith; (c)  be kept apart or insulated from any source of ignition or from temperatures likely to cause combustion; and (d)  where the material or substance is not intended for immediate use, be kept, stored or handled, (i)  outside any building, (ii)  in a building not used for any other purpose, or (iii)  in a well ventilated compartment with at least a one hour fire-resistance rating which is located in conformity with clause (c).  R.R.O. 1990, Reg. 854, s. 43.
44. (1) In addition to the main exit, a building at a mining plant, except a magazine, shall be provided with a second means of exit, convenient to and having easy communication with all rooms regularly occupied by a worker, including, (a)  tower stairs equipped with doors and hardware with at least a one hour fire-resistance rating at each storey including the basement; or (b)  metal or other noncombustible fire escapes consisting of exterior stairways with railings and with landings at each storey connecting directly with the interior of the building through metal or other doors with at least a one hour fire-resistance rating.  R.R.O. 1990, Reg. 854, s. 44 (1); O. Reg. 167/16, s. 1. (2) No means of exit from a plant building shall be obstructed and no door to a fire escape, tower stair or other smokeproof enclosure shall be prevented from closing or remaining closed.  R.R.O. 1990, Reg. 854, s. 44 (2).
45. A process that is likely to produce a gas, vapour, dust or fume to such an extent as to be capable of forming a flammable mixture with air shall be carried out in an area which, (a)  is isolated from other operations; (b)  has a system of ventilation which removes the gas, vapour, dust or fume; (c)  has no potential sources of ignition; and (d)  has vents, baffles, chokes, dampers or other means to reduce the effects of any explosion, as may be required.  R.R.O. 1990, Reg. 854, s. 45. PART III   ACCESS TO WORKPLACES
46. (1) A safe means of access to a workplace shall be provided by a walkway, stairway or ladderway.  R.R.O. 1990, Reg. 854, s. 46 (1). (2) Where workers are required to work, operate, maintain or service equipment, a safe means of access shall be provided as prescribed in subsection (1).  R.R.O. 1990, Reg. 854, s. 46 (2). (3) Every walkway and every working platform more than 1.5 metres above the ground shall be provided with, (a)  a handrail not less than 0.91 metre or more than 1.07 metres above the floor of the walkway or platform; (b)  a second rail placed at the mid-point between the top rail and the floor of the walkway or platform or have the space between the top rail and the floor closed by a screen; and (c)  toeboards which shall extend from the floor a height of not less than 100 millimetres.  R.R.O. 1990, Reg. 854, s. 46 (3). (4) The handrail required by clause (3) (a) shall be capable of withstanding a load applied in any direction to the top rail of at least 0.9 kilonewton.  R.R.O. 1990, Reg. 854, s. 46 (4). (5) Despite clauses (3) (b) and (c), toeboards and second rails are not required on a temporary walkway or working platform or on an underground drilling platform that is normally not more than three metres above the ground.  R.R.O. 1990, Reg. 854, s. 46 (5). (6) When a platform consists of wooden planks, the planks shall, (a)  be sound, unpainted and free of large knots; (b)  provide a minimum safety factor of three times the maximum load to which it is likely to be subjected; and (c)  be nailed or otherwise secured against movement.  R.R.O. 1990, Reg. 854, s. 46 (6). (7) Where a means of access to a workplace is inclined at more than twenty degrees and less than fifty degrees to the horizontal, a stairway or ladderway shall be provided.  R.R.O. 1990, Reg. 854, s. 46 (7). (8) Where a means of access to a workplace is inclined at more than fifty degrees to the horizontal, a ladder shall be provided.  R.R.O. 1990, Reg. 854, s. 46 (8). (9) A stairway shall, (a)  be at an angle not greater than fifty degrees to the horizontal; (b)  not have the rise or vertical distance between landings of a flight exceed 3.6 metres; (c)  have the treads and risers uniform in width and height respectively in any one flight; and (d)  be provided with handrails of adequate strength not less than 0.91 metre and not more than 1.07 metres in height above the treads of the stairs.  R.R.O. 1990, Reg. 854, s. 46 (9).
47. (1) A ladder shall, (a)  be of strong construction; (b)  be free from broken or loose members or other faults; (c)  be installed and maintained so as to reduce to a minimum the hazard of a person falling therefrom; (d)  if made of wood, (i)  be of sound straight-grain lumber, (ii)  not be painted or otherwise treated in a manner to obscure the grain; (e)  have a distance between centres of the rungs not greater than 300 millimetres or less than 250 millimetres; (f)  have the spacing between rungs not vary more than fifteen millimetres in a ladderway; (g)  have not less than 100 millimetres clearance behind any rung from a wall or any timber or obstruction underneath the ladder; and (h)  project at least one metre above the landing or opening unless strong handholds are provided above the top of the ladder.  R.R.O. 1990, Reg. 854, s. 47 (1). (2) A fixed ladder shall be securely fastened in place.  R.R.O. 1990, Reg. 854, s. 47 (2).
48. Except in an underground mine, the following rules apply in respect of a ladderway: 1.  If a worker is exposed to the hazard of falling more than three metres, the ladderway shall be fixed in place and be provided with, i.  a safety cage, or ii.  a protective device that will prevent a worker from falling. 2.  If a ladderway is seven metres or longer and at an angle steeper than 70 degrees to the horizontal, in addition to the requirement in paragraph 1, the ladderway shall be provided with platforms at intervals not greater than seven metres. 3.  If platforms are used in conjunction with a ladderway, whether as required under paragraph 2 or otherwise, i.  the ladders shall be offset, ii.  a platform shall be provided at each place where the ladders are offset, and iii.  a platform shall not be less than 600 millimetres in width by 1.2 metres in length. O. Reg. 69/23, s. 8.
49. A portable ladder shall, (a)  be equipped with non-slip feet or otherwise secured; (b)  where any activity in the vicinity may create a hazard to a person thereon, be protected at its base; and (c)  where the ladder has metal or metal-reinforced side rails, not be used near exposed and energized electrical circuits or equipment.  R.R.O. 1990, Reg. 854, s. 49.
50. (1) Subject to subsection (2), a suitable ladderway shall be provided in every shaft.  R.R.O. 1990, Reg. 854, s. 50 (1). (2) An independently powered conveyance may be used in place of a ladderway.  R.R.O. 1990, Reg. 854, s. 50 (2). (3) Except for an auxiliary ladder used in shaft-sinking operations, a shaft ladder shall be inclined.  O. Reg. 272/97, s. 11. (4) During shaft-sinking operations, if a permanent ladder is not provided to the bottom, an auxiliary ladder that will reach from the permanent ladders to the bottom shall be provided in such convenient position that it may be promptly lowered to any point at which a worker is working.  R.R.O. 1990, Reg. 854, s. 50 (4).
50.1 (1) For the purposes of subsection 50 (2), an independently powered conveyance that is used in place of a ladderway must, (a)  have a source of power that is independent of the main source of power for the mine; (b)  be capable of safely transferring persons up and down in a shaft to a location from which they can safely exit the shaft; and (c)  be readily available for use. O. Reg. 69/23, s. 9. (2) In addition to the requirements of subsection (1), the following rules apply if the independently powered conveyance is part of a mine hoisting plant and is used for emergency purposes only: 1.  Before it is first used, an engineer must give a written statement to the owner setting out that that the conveyance is designed and manufactured in accordance with appropriate engineering standards. 2.  The conveyance shall be examined, maintained, operated and tested regularly in accordance with good industry practices and with the manufacturer’s recommendations. 3.  Sections 203 to 250 do not apply in respect of the conveyance. O. Reg. 69/23, s. 9. (3) A record of the examinations and tests required under paragraph 2 of subsection (2) shall be made and kept readily available at the mine site. O. Reg. 69/23, s. 9.
51. (1) Where a ladderway is installed in an underground mine or in a headframe used in conjunction with a shaft and the ladderway is inclined at more than seventy degrees from the horizontal, (a)  the ladderway shall be provided with substantial platforms at intervals not greater than seven metres; (b)  the ladders shall be offset at the platform; (c)  except for openings large enough to permit the passage of a worker, the platforms shall be fully closed; and (d)  if installed in a shaft manway, the ladders shall be placed over the openings of the platforms below.  R.R.O. 1990, Reg. 854, s. 51 (1). (2) Where the ladderway is inclined at less than seventy degrees to the horizontal, the ladders may be continuous and the provisions of clauses (1) (a) and (c) shall apply.  R.R.O. 1990, Reg. 854, s. 51 (2). (3) Where a ladderway is inclined at less than fifty degrees to the horizontal, no platform is required except at points of offset.  R.R.O. 1990, Reg. 854, s. 51 (3). (4) Where a ladderway is the only means of access for mine rescue purposes, the opening shall be large enough for such purpose.  R.R.O. 1990, Reg. 854, s. 51 (4).
52. Wire ropes used for climbing purposes shall not be frayed or have projecting broken wires.  R.R.O. 1990, Reg. 854, s. 52.
53. No person shall be, or be permitted to be, in a combined ladderway and hoistway compartment while a bucket or material is being, (a)  loaded or unloaded at the top; or (b)  hoisted or lowered.  R.R.O. 1990, Reg. 854, s. 53.
54. (1) A walkway, stairway or ladderway shall be, (a)  maintained in a safe condition; (b)  free from obstructions; (c)  of sufficient size to ensure that crowding does not occur; and (d)  cleared of hazardous accumulation of material without undue delay.  R.R.O. 1990, Reg. 854, s. 54 (1). (2) Any opening in a floor or other surface which may be a hazard to a worker shall be, (a)  protected by a guardrail; or (b)  covered with securely fastened planks or other material capable of supporting any load to which it is likely to be subjected.  R.R.O. 1990, Reg. 854, s. 54 (2). PART IV   PROTECTION OF WORKERS
55. No worker shall work in a location where another worker is working overhead unless measures are taken to protect the worker.  R.R.O. 1990, Reg. 854, s. 55.
56. Where a gas, liquid or vapour is contained at a pressure other than atmospheric pressure, before any fastening of the container or system connected therewith, (a)  is loosened, any flow into or out of the container or system shall be effectively stopped; or (b)  is removed, the container or system shall be drained or bled so that the pressure in the container or system equals atmospheric pressure.  R.R.O. 1990, Reg. 854, s. 56.
57. No liquids or solids shall be transferred from one location or container to another location or container by the application of air under pressure except where equipment specifically designed for the purpose is used.  R.R.O. 1990, Reg. 854, s. 57.
58. Plastic pipe and fittings shall, (a)  meet CSA
Standards B137.0-M 1981 and B137.3-M 1981 or, if installed after the 1st day of September, 1992, meet CSA Standards B137.0-M1986, “Definitions, General Requirements and Methods of Testing For Thermoplastic Pressure Piping” and B137.3-M1986, “Rigid Polyvinyl Chloride PVC Pipe For Pressure Applications”; (b)  be properly supported; (c)  not be used for the main supply or discharge of compressed air or water in mine shafts; and (d)  not be forced around bends that may unreasonably stress the pipe or its connections.  R.R.O. 1990, Reg. 854, s. 58; O. Reg. 571/92, s. 5.
59. (1) All openings, sumps, vessels, bins, hoppers, elevated platforms or pits, other than grease pits, which constitute a hazard, shall be fenced or otherwise guarded.  R.R.O. 1990, Reg. 854, s. 59 (1). (2) Every power-operated door through which vehicles or pedestrians travel, (a)  shall be clearly distinguished from its surroundings; and (b)  shall be operated in accordance with the procedures adopted by the employer for its use.  R.R.O. 1990, Reg. 854, s. 59 (2).
60. (1) Before a worker enters any silo, bin, hopper or other container or structure containing bulk material, all further supply of material thereto shall be stopped and any removal of material therefrom shall be prevented.  R.R.O. 1990, Reg. 854, s. 60 (1). (2) When working on top of bulk material in any silo, bin, hopper or other container or structure, (a)  a worker shall use a fall arrest system; and (b)  at least one other worker, who is a competent person, equipped with a suitable alarm shall be in constant attendance outside the silo, bin, hopper or other container or structure.  R.R.O. 1990, Reg. 854, s. 60 (2).
61. (1) Stockpiles of unconsolidated material shall be, (a)  inspected for hazardous conditions regularly by a competent person; and (b)  made safe before a worker is allowed to work close to or on top of the stockpile.  R.R.O. 1990, Reg. 854, s. 61 (1). (2) Bulk or packaged material shall be piled or stacked in a manner to prevent accidental movement or collapse.  R.R.O. 1990, Reg. 854, s. 61 (2). (3) When a tunnel is used under a stockpile for the purpose of reclaiming material from the stockpile at least two exits shall be provided from the tunnel.  R.R.O. 1990, Reg. 854, s. 61 (3).
62. A procedure shall be established and maintained at an underground mine to record every worker and other person who is underground in the mine.  R.R.O. 1990, Reg. 854, s. 62.
62.1 (1) This section applies with respect to tasks at a workplace that are determined to be non-routine hazardous tasks jointly by the employer and the joint health and safety committee or the health and safety representative, if any, for the workplace.  O. Reg. 60/94, s. 4. (2) The employer and the joint health and safety committee or the health and safety representative shall jointly establish safe procedures for performing a non-routine hazardous task.  O. Reg. 60/94, s. 4. (3) The employer shall ensure that the safe procedures are set out in writing.  O. Reg. 60/94, s. 4. (4) The employer shall ensure that workers are informed that a task is a non-routine hazardous task and are informed about the procedures for performing it before beginning the task.  O. Reg. 60/94, s. 4. (5) A worker performing a non-routine hazardous task shall follow the established procedures.  O. Reg. 60/94, s. 4.
63. (1) Subject to subsection (2), a supervisor shall examine, in person, every place where drilling and blasting is being carried out at least once during each work shift. O. Reg. 69/23, s. 10. (2) Where drilling and blasting is being carried out in a raise, the following rules apply: 1.  An examination required under subsection (1) may be carried out by use of an electronic device that is equipped with a high definition camera rather than in person if the device, i.  allows the supervisor to adequately assess the place where drilling and blasting is being carried out, and ii.  creates a record that is retained and can be made available for inspection at the request of an inspector. 2.  In addition to examinations required under subsection (1) that are carried out by use of an electronic device equipped with a high definition camera in accordance with paragraph 1 of this subsection, a supervisor shall also examine, in person, every place in a raise where drilling and blasting is being carried out at least once each work week. O. Reg. 69/23, s. 10. (3) A supervisor shall examine, in person, every place where workers carry on work, other than where drilling and blasting is being carried out, at least once each work week. O. Reg. 69/23, s. 10.
64. (1) Where a potential or actual danger to the health and safety of a worker has not been remedied or removed at the end of a work shift, the supervisor of the work shift shall make and sign a written record describing, (a)  the dangerous condition; and (b)  the state of corrective measures taken. O. Reg. 69/23, s. 11. (2) Before any worker on the next work shift does any work in the area of the dangerous condition, the supervisor of that work shift shall, (a)  read and countersign the record made and signed under subsection (1); and (b)  advise any workers who may be affected by the condition about, (i)  the dangerous condition, (ii)  the state of corrective measures taken, and (iii)  the work required to be done to remove or remedy the dangerous condition. O. Reg. 69/23, s. 11.
65. (1) An employer in an underground mine, in consultation with the joint health and safety committee, if any, for the mine, shall develop a written program to provide for the timely communication of information between workers and supervisors in the mine respecting ground stability, ground movement, falls of ground, ground monitoring equipment and emergencies.  R.R.O. 1990, Reg. 854, s. 65 (1). (2) The communications program shall set out, (a)  means and procedures for communicating information; (b)  the kind of information to be communicated; and (c)  the actions to be taken by supervisors and workers with respect to information that is communicated to them.  R.R.O. 1990, Reg. 854, s. 65 (2).
66. (1) Before work is begun in a workplace in an underground mine, the ground conditions of the workplace shall be examined for dangers and hazards and, if required, made safe.  R.R.O. 1990, Reg. 854, s. 66 (1). (2) Revoked:  O. Reg. 571/92, s. 6.
67. (1) An employer shall prepare written procedures to be used at an underground mine concerning, (a)  activities relating to the installation of ground support at the mine; and (b)  activities that require a worker to be exposed to unsupported ground before the ground support is installed.  O. Reg. 571/92, s. 7. (2) The procedures shall state the methods for undertaking the activities and for preventing workers’ exposure to unsafe ground conditions.  O. Reg. 571/92, s. 7. (3) The employer shall consult with the joint health and safety committee or, if no committee exists, with the health and safety representative in preparing the procedures.  O. Reg. 571/92, s. 7.
67.1 During scaling procedures in a workplace in an underground mine, no other work shall be carried on that hinders the scaling procedures.  O. Reg. 571/92, s. 7.
69. (1) Illumination shall be provided in an underground mine adequate for a worker to visually assess ground conditions at the worker’s workplace.  R.R.O. 1990, Reg. 854, s. 69 (1). (2) Where a cap lamp is used to provide the illumination as required by subsection (1), it shall be capable of providing a peak illuminance of at least 1500 lux at 1.2 metres from the light source.  R.R.O. 1990, Reg. 854, s. 69 (2). (3) An employer in an underground mine who supplies cap lamps to workers shall develop a procedure for assessing and maintaining cap lamps and a copy of the procedure shall be available at the mine site for review by the joint health and safety committee or health and safety representative, if any, for the mine.  R.R.O. 1990, Reg. 854, s. 69 (3); O. Reg. 272/97, s. 12. (4) A record of cap lamp maintenance test results shall be kept.  R.R.O. 1990, Reg. 854, s. 69 (4). (5) Despite subsection (2), if the ground to be assessed is at a distance that is greater than the effective range of a cap lamp, the employer shall supply, and the worker shall use, auxiliary lighting that will provide the illumination required by subsection (1).  R.R.O. 1990, Reg. 854, s. 69 (5).
70. Revoked:  O. Reg. 272/97, s. 13.
71. (1) An overhead protective device to protect the operator from falling objects shall be installed on every motor vehicle that is used, (a)  in an underground mine that is developed after June 1, 1988; or (b)  in an area in an underground mine with respect to which the Director has given the owner a written opinion that local ground stability presents a hazard to the operators.  O. Reg. 84/07, s. 4. (2) Clause (1) (a) does not apply to a motor vehicle while it is being used in an area in an underground mine that is made safe, (a)  by scaling, timbering or rockbolting; or (b)  by measures that provide safety equal to or better than scaling, timbering or rockbolting.  O. Reg. 84/07, s. 4. (3) An overhead protective device required by subsection (1) shall comply with the falling-object protective structures requirements of International Standard ISO 3449-05 (R2022) “Earth-Moving Machinery – Falling Object Protective Structures – Laboratory Tests and Performance Requirements”. O. Reg. 84/07, s. 4; O. Reg. 167/16, s. 7; O. Reg. 69/23, s. 12. (4) An overhead protective device shall be maintained in good condition.  O. Reg. 84/07, s. 4.
71.1 (1) An owner of an underground mine shall, in consultation with the joint health and safety committee or health and safety representative, if any, develop and maintain a written seismic risk management program. O. Reg. 69/23, s. 13. (2) The program shall, (a)  set out how areas of the mine that have high levels of seismic risk and activity are to be identified; (b)  include a description or list of the areas of the mine identified under clause (a) and set out mitigation plans for those areas; (c)  set out how micro seismic activity will be monitored in the areas of the mine identified under clause (a) and how frequently that data will be analysed; (d)  include measures and procedures to assess the performance of the system used to monitor micro seismic activity and to maintain the system and its components; (e)  identify the persons responsible for implementing the program, including the persons responsible for responding to seismic events and rockbursts; (f)  set out how seismic events and rockbursts are to be documented and where the documentation will be kept; and (g)  establish a re-entry protocol following seismic events or rockbursts and set out how and when the re-entry protocol applies. O. Reg. 69/23, s. 13. (3) A copy of the program shall be provided to the joint health and safety committee or health and safety representative, if any, and be kept readily available at the mine site. O. Reg. 69/23, s. 13. (4) Subject to subsections (5) and (6), the program shall be reviewed at least annually. O. Reg. 69/23, s. 13. (5) The program shall be reviewed as soon as possible if, (a)  a risk assessment conducted under section 5.1 identifies a new seismic risk; (b)  a measure developed and maintained under section 5.2 in relation to seismic risks fails; or (c)  a mine design prepared and maintained under subsection 6 (1) identifies a new zone or area of the mine that is expected to be seismically active. O. Reg. 69/23, s. 13. (6) If a review is required under subsection (5), the next annual review required by subsection (4) shall be within one year of the date of the review under subsection (5). O. Reg. 69/23, s. 13. (7) For greater certainty, an employer’s duty to provide information and instruction to a worker under clause 25 (2) (a) of the Act includes the duty to provide the worker with information and instruction that is appropriate for the worker on the contents of the seismic risk management program. O. Reg. 69/23, s. 13.
72. (1) In the event of an occurrence listed in subsection (2) at a surface mine producing metallic ore or at an underground mine, a record of that occurrence shall be kept in writing and shall provide the following: 1.  The time, location and extent of the occurrence. 2.  Any other relevant information, including the records of any monitoring instruments or devices before the occurrence. O. Reg. 69/23, s. 14. (2) For the purposes of subsection (1), the following are considered occurrences: 1.  A rockburst. 2.  An uncontrolled fall of ground. 3.  A seismic event that is of a magnitude that is likely to cause significant rock mass damage or may compromise the effectiveness of the ground support system. 4.  A seismic event that occurs in or near an active area of a mine that is of a magnitude that may cause ground instability. O. Reg. 167/16, s. 8.
73. (1) An employer shall develop a quality control program for work in an underground mine to ensure that the ground support systems that are specified in the mine design are properly installed and remain effective while in use.  O. Reg. 571/92, s. 8. (2) The employer shall maintain a record of the tests that are required under the quality control program.  O. Reg. 571/92, s. 8. (3) If requested, the employer shall provide a copy of the quality control program and of the record of tests under the program to the joint health and safety committee or, if no committee exists, to the health and safety representative.  O. Reg. 571/92, s. 8.
74. A shaft, raise or other opening in an underground mine shall be securely fenced, covered or otherwise guarded.  R.R.O. 1990, Reg. 854, s. 74.
75. (1) A shaft shall be securely cased, lined or timbered.  R.R.O. 1990, Reg. 854, s. 75 (1). (2) During shaft-sinking operations, the casing, lining or timbering shall be maintained within a distance of the bottom not exceeding twenty metres.  R.R.O. 1990, Reg. 854, s. 75 (2).
76. (1) Except during shaft-sinking operations, a shaft compartment used for the handling of material shall be enclosed at the collar and at all levels, except the side on which material is loaded on or off the shaft conveyance.  R.R.O. 1990, Reg. 854, s. 76 (1). (2) The enclosure referred to in subsection (1) shall, (a)  be made of substantial materials; (b)  extend above the collar and each level a distance of not less than the height of the shaft conveyance plus two metres but need not exceed seven metres; (c)  extend below the collar and each level a distance of not less than two metres; and (d)  conform to the size of the shaft conveyance, allowing for necessary operating clearance.  R.R.O. 1990, Reg. 854, s. 76 (2).
77. (1) Subject to subsection (2), the manway in a shaft shall be separated from the hoisting or counterweight compartments by a partition which complies with subsection 76 (2).  R.R.O. 1990, Reg. 854, s. 77 (1). (2) Between levels, the partition may consist of metal of suitable weight and mesh to prevent, (a)  a falling object from entering the manway; or (b)  the intrusion of an object from the manway into the hoisting compartment.  R.R.O. 1990, Reg. 854, s. 77 (2). (3) A safe passageway and standing room for a person outside the shaft shall be provided at all workings opening into a shaft and the manway shall be directly connected with such openings.  R.R.O. 1990, Reg. 854, s. 77 (3).
78. (1) Except when the hoisting compartment at a shaft station is securely closed off, a substantial gate shall be installed.  R.R.O. 1990, Reg. 854, s. 78 (1). (2) The gate required by subsection (1) shall, (a)  be kept closed except when the shaft conveyance is being loaded or unloaded at the station; (b)  have a minimum of clearance beneath it; and (c)  be reinforced against impact of, (i)  a locomotive, train or car when rail tracks lead to the compartment, or (ii)  a motor vehicle when motor vehicles are used in the vicinity of the shaft.  R.R.O. 1990, Reg. 854, s. 78 (2).
79. Where a counterweight is used in a shaft, the counterweight compartment shall be enclosed except when the counterweight travels on guides.  R.R.O. 1990, Reg. 854, s. 79.
80. During shaft-sinking operations, no work shall be done in any place in a shaft while a worker is working in another part of the shaft below such place unless the worker in the lower position is protected from the danger of falling material by a securely constructed covering extending over a sufficient portion of the shaft to afford complete protection.  R.R.O. 1990, Reg. 854, s. 80.
81. Hooks used in connection with the suspension of any equipment or material in a shaft or raise or over a worker shall be choked or equipped with a safety latch.  R.R.O. 1990, Reg. 854, s. 81.
82. When work or an examination is taking place in the compartment of a shaft or in that part of the headframe used in conjunction therewith, (a)  hoisting operations in that compartment, except for those necessary to perform the work or examination, shall be suspended; (b)  protection from accidental contact with any moving shaft conveyance or counterweight, or falling objects shall be provided for a worker performing the work or examination; and (c)  the power supply to all conveyor belts, gates and other devices that are located above a worker and that could cause material to flow into the shaft shall be locked and tagged in the safe position and the gates shall be mechanically secured in the closed position.  R.R.O. 1990, Reg. 854, s. 82; O. Reg. 571/92, s. 9.
82.1 Before the commencement of work or of an examination below a loading pocket in a shaft, a competent person who is authorized by the employer to proceed, and who proceeds, below the loading pocket shall inspect it to ensure that the work or examination can proceed safely.  O. Reg. 583/91, s. 2.
83. (1) This section applies when a raise is being developed and there are workers in the raise.  O. Reg. 272/97, s. 15. (2) A raise that is inclined at an angle greater than 50 degrees and is longer than 10 metres from the collar to the face shall be divided into at least two compartments, one of which shall be a ladderway.  O. Reg. 272/97, s. 15. (3) Subsection (2) does not apply where a raise climber is used.  O. Reg. 272/97, s. 15. (4) The ladderway shall be maintained within five metres of the face of the raise.  O. Reg. 272/97, s. 15.
85. Where the entrance or exit to a workplace in an underground mine cannot be used at all times, a second means of entrance or exit shall be provided.  R.R.O. 1990, Reg. 854, s. 85.
86. A diamond drill hole in an underground mine shall at the time that drilling is discontinued or an intersection with the drill hole is made, (a)  be clearly marked at the collar and any points of intersection or breakthrough, with a single capital letter “H” that is, (i)  located within one metre of the collar or intersection, and (ii)  at least 300 millimetres by 300 millimetres in size; (b)  have the approach to the collar or to any intersection or breakthrough securely closed off or guarded, (i)  when mining is in progress towards the hole, and (ii)  when blasting is to be done within five metres of an intersection of the hole; and (c)  be shown on the plans of the mine.  R.R.O. 1990, Reg. 854, s. 86; O. Reg. 68/96, s. 2.