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Type III Procedure
Type III Operations

(i) the removal other than the minor removal of friable material containing asbestos during the repair, alteration, maintenance or demolition of a building, aircraft, ship, locomotive, railway car or vehicle or any machinery or equipment, or part thereof,

(ii) the spray application of a sealant to friable material containing asbestos,

(iii) the cleaning or removal of air-handling equipment, including rigid ducting, in a building that has sprayed fireproofing containing asbestos,

(iv) the repair, alteration or demolition of a kiln, metallurgical furnace or similar device or part thereof, made in part of refractory materials containing asbestos,

(v) the use of power tools not equipped with a dust collection device equipped with a HEPA filter to grind, cut or abrade a product mentioned in subclause (a) (i), or

(vi) the repair, alteration or demolition of any building or part thereof in which asbestos is or was used in the manufacture of products unless the asbestos was cleaned up and removed before the 16th day of March, 1986.

Section 12.- The following measures and procedures apply to Type 2 operations and to Type 3 operations:
  1. A wetting agent shall be added to water that is to be used to control the spread of asbestos dust
  2. Eating, drinking, chewing or smoking shall not be permitted in the work area.
  3. Containers for dust and waste containing asbestos shall be
    • dust tight,
    • suitable for the type of waste,
    • impervious to asbestos,
    • identified as containing asbestos waste,
    • cleaned with a damp cloth or a vacuum equipped with a HEPA filter immediately before being removed from the work area, and
    • removed from the workplace frequently and at regular intervals.
  4. The employer shall provide every worker who will enter the work area with respiratory protective equipment and the worker shall wear and use the equipment.
  5. Protective clothing shall be provided by an employer and worn by every worker who enters the work area and the protective clothing,
    • shall be made of a material which does not readily retain nor permit penetration of asbestos fibres,
    • shall consist of full body covering including head covering with snug fitting cuffs at the wrists, ankles and neck,
    • shall include suitable footwear, and
    • shall be repaired or replaced if torn.
  6. Compressed air shall not be used to clean up and remove asbestos dust from any surface.
  7. Only persons wearing protective clothing and equipment shall enter a work area where there is an asbestos dust hazard. R.R.O. 1990, Reg. 838, s. 12.
In addition to the measures and procedures prescribed by section 12, the following measures and procedures apply to Type 3 operations:
  1. The work area shall be identified by signs warning of an asbestos dust hazard.
  2. The work area shall be separated from the rest of the workplace by walls or by the placing of barricades or fencing or by other suitable means.
  3. Signs required by paragraph 1 shall be posted in sufficient numbers to warn of the hazard and shall state in large clearly visible letters that,
    • there is an asbestos dust hazard, and
    • access to the work area is restricted to persons wearing protective clothing and equipment.
  4. In the case of an operation mentioned in subclause 9 (1) (c) (v),
    • the spread of asbestos dust from the work area shall be prevented by the use of,
      • enclosures of polyethylene or other suitable material where walls do not enclose the work area, and
      • curtains of polyethylene sheeting or other suitable material fitted on each side of each entrance or exit from the work area,
    • frequently and at regular intervals during the doing of the work and immediately upon completion of the work, dust and waste containing asbestos shall be cleaned up and removed and placed in a container as described in paragraph 3 of section 12,
    • polyethylene sheeting and other material used for barriers or enclosures shall not be reused after completion of the work and immediately upon completion of the work shall be wetted and placed in containers as described in paragraph 3 of section 12,
    • the respirator required by paragraph 4 of section 12 shall be a powered air purifying positive pressure dust respirator suitable for protection against asbestos,
    • before leaving the work area, a worker shall decontaminate his or her protective clothing using a vacuum equipped with a HEPA filter or by damp wiping prior to removing it and shall then remove it,
    • if protective clothing will not be reused, the worker shall place the protective clothing in a container as described in paragraph 3 of section 12, and
    • facilities for the washing of hands and face shall be made available to a worker and shall be used by every worker when leaving the work area.
  5. In the case of an operation mentioned in subclause 9 (1) (c) (i) that is being carried on out-of-doors,
    • where practicable the material to be removed shall be thoroughly wetted before and during removal unless wetting creates a hazard or causes damage,
    • dust and waste containing asbestos shall not be permitted to fall freely from one work level to another,
    • frequently and at regular intervals during the doing of the work and immediately upon completion of the work, dust and waste containing asbestos shall be cleaned up and removed and placed in a container as described in paragraph 3 of section 12,
    • wherever practicable, the work area shall be washed down with water after completion of the clean-up and removal,
    • temporary electrical power distribution systems for tools and equipment involved in wet removal operations shall be equipped with ground fault circuit interrupters,
    • a decontamination facility shall be located as close as practicable to the work area and shall consist of,
      • a room suitable for changing into protective clothing and for storing contaminated protective clothing and equipment,
      • a shower room as described in subparagraph iv of paragraph 6, and
      • a room suitable for changing into street clothes and for storing clean clothing and equipment, arranged in sequence and constructed so as to prevent the spread of asbestos dust,
    • when leaving the work area, a worker shall enter the decontamination facility and shall, in the following order,
      • where the protective clothing will be reused, decontaminate the protective clothing using a vacuum equipped with a HEPA filter or damp wiping prior to removing it and shall then remove it,
      • where the protective clothing will not be reused, place the protective clothing in a container as described in paragraph 3 of section 12,
      • shower, and
      • remove and clean the respirator, and
    • the respirator required by paragraph 4 of section 12 shall be,
      • a supplied air, positive pressure full facepiece respirator where the friable material containing asbestos cannot be wetted,
      • a powered air purifying positive pressure dust respirator suitable for protection against asbestos where the friable material contains a type of asbestos other than chrysotile and can be and is wetted, or
      • a non-powered reusable or replaceable air purifying dust respirator suitable for protection against asbestos when the friable material contains chrysotile asbestos only and can be and is wetted.
  6. In the case of an operation mentioned in subclause 9 (1) (c) (i) that is carried on indoors or an operation mentioned in subclause 9 (1) (c) (ii), (iii), (iv) or (vi),
    • friable material containing asbestos that is crumbled, pulverized or powdered and that is lying on the surface of any thing or place in the work area shall be cleaned up and removed using a vacuum equipped with a HEPA filter or by damp wiping and all things shall be removed from the work area or covered with polyethylene sheeting or other suitable material,
    • the spread of asbestos dust from the work area shall be prevented by an enclosure of polyethylene or other suitable material where walls do not enclose the work area and by a decontamination facility consisting of a series of interconnecting rooms including,
      • a room suitable for changing into protective clothing and for storing contaminated protective clothing and equipment,
      • a shower room as described in subparagraph iv,
      • a room suitable for changing into street clothes and for storing clean clothing and equipment, and
      • curtains of polyethylene sheeting or other suitable material fitted to each side of the entrance or exit to each room,
      • arranged in sequence and constructed so that any person entering or leaving the work area must pass through each room in the decontamination facility,
    • the mechanical ventilation system serving the work area shall be disabled and all openings or voids, including ventilation ducts to or from the work area, shall be sealed by tape or other appropriate means,
    • the shower room in the decontamination facility,
      • shall be provided with hot and cold water or water of a constant temperature that is not less than 40° Celsius or more than 50° Celsius,
      • shall have individual controls inside the room to regulate water flow and, if there is hot and cold water, individual controls inside the room to regulate temperature,
      • shall be capable of providing adequate supplies of hot water to maintain a water temperature of at least 40° Celsius, and
      • shall be provided with clean towels,
    • when leaving the work area, a worker shall enter the decontamination facility and shall, in the following order,
      • where the protective clothing will be reused, decontaminate the protective clothing using a vacuum equipped with a HEPA filter or damp wiping prior to removing it and shall then remove it,
      • where the protective clothing will not be reused, place the protective clothing in a container as described in paragraph 3 of section 12,
      • shower, and
      • remove and clean the respirator
    • where practicable, existing electrical power distribution systems that are not water-tight shall be de-energized and locked out where wet removal operations are to be carried out,
    • temporary electrical power distribution systems for tools and equipment involved in wet removal operations shall be equipped with ground fault circuit interrupters,
    • friable material containing asbestos shall be thoroughly wetted before and during removal unless wetting creates a hazard or causes damage,
    • the respirator required by paragraph 4 of section 12 shall be,
      • a supplied air, positive pressure full facepiece respirator where the friable material containing asbestos cannot be wetted,
      • a powered air purifying positive pressure dust respirator suitable for protection against asbestos where the friable material contains a type of asbestos other than chrysotile and can be and is wetted, or
      • a non-powered reusable or replaceable air purifying dust respirator suitable for protection against asbestos when the friable material contains chrysotile asbestos only and can be and is wetted,
    • the work area shall be inspected by a competent person for defects in the enclosure, barriers and decontamination facility,
      • at the beginning of each shift,
      • at the end of a shift where there is no shift beginning immediately following the shift that is ending,
      • at least once each day on days when there are no shifts,
    • defects observed during an inspection under subparagraph x shall be repaired forthwith and no work, other than such repair work, shall be carried out in the work area until the repair work is completed,
    • where practicable, dust and waste containing asbestos shall be kept wet,
    • frequently and at regular intervals during the doing of the work and immediately upon completion of the work, dust and waste containing asbestos shall be cleaned up and removed and placed in a container as described in paragraph 3 of section 12,
    • upon completion of the work and before removing or dismantling the barriers, enclosure and decontamination facility,
      • the work area shall be cleaned by a thorough washing where practicable and by vacuuming with a vacuum equipped with a HEPA filter, and
      • equipment, tools and other items used in the work area shall be cleaned with a damp cloth and by vacuuming with a vacuum equipped with a HEPA filter or they shall be placed in a container as described in paragraph 3 of section 12 before being removed from the work area, and
    • polyethylene sheeting or other material used for barriers or enclosures or the decontamination facility shall not be reused and shall be wetted and placed in a container as described in paragraph 3 of section 12 as soon as practicable after complying with subparagraph xiv. R.R.O. 1990, Reg. 838, s. 14.
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