OHS Guidelines: Heat exposure, work in compressed air

Guidelines — Occupational Health and Safety Regulation

The following new and revised guidelines were posted:

• Part 7, Division 4 – Heat Exposure
  • G7.27(1) Heat exposure — Application (revised)
  • G7.28(1)-1 Heat stress exposure limits (new)
  • G7.28(1)-2 Unacclimatized workers (new)
  • G7.29-1 Heat stress assessment (revised)
  • G7.29-5 Exposure control plan (revised)
  • G7.30 Heat stress controls (new)
  • G7.31 Provision of water (new)

• Part 13, Ladders, Scaffolds and Temporary Work Platforms
  • G13.2 Ships' ladders (revised)

• Part 20, Construction, Evacuation and Demolition — Work in Compressed Air
  • G20.123 Alternate acceptable standard (revised)

The following guidelines were retired:

• G7.28(1) Exposure limits - Using the ACGIH Standard
• G7.28(2) Clothing correction values
• G7.29-2 Environmental parameters
• G7.29-3 Physiological measures
• G7.29-4 Heat stress assessment using a dry bulb thermometer or Humidex index
• G7.30-1 Engineering controls
• G7.30-2 Administrative controls
• G7.30-3 Personal protective equipment

New and revised guidelines are posted for a 60-day preliminary period, during which time the stakeholder community may comment and request revisions.