646 Heat Injury and Illness Prevention: Supervisor

The qualified person is the technical expert who:

• Designs and refines the heat‐stress program by:
  • Choosing and calibrating monitoring equipment (WBGT devices or wearables).
  • Setting work-rest and acclimatization schedules.
  • Ensuring emergency plans are site-specific.
• Advises competent persons on controls.
• Interprets environmental and physiological data.
• Coordinates with medical professionals to maintain a science-based, proactive defense against heat illness.

• Program Modeling: Developing and customizing a comprehensive heat-stress management program.
• Instrumentation & Measurement: Calibrating, deploying, and interpreting heat-stress devices (including wearable monitors).
• First Aid & CPR: Administering emergency medical care for heat illness and executing the emergency action plan.
• Risk‐Reduction Techniques: Applying engineering and administrative controls; selecting appropriate PPE.
• Work-Rest & Acclimatization Design: Crafting schedules that build tolerance and limit exposure.
• Heat-Illness Science: Understanding how heat illness develops, personal risk factors, symptoms, and treatment.
• Human Heat Balance: Understand how the body maintains its normal temperature.
• Physiological Monitoring: Using wearable or physiological markers to monitor worker heat-stress.
• Environmental Monitoring: Managing WBGT or Heat Index measurements and leveraging forecast data.
• Cooling Equipment: Employing PPE and other equipment (e.g., cooling vests, fans, air conditioning) to accelerate recovery during breaks.
• NIOSH Screening Guidelines: Applying NIOSH recommendations for pre-placement and periodic heat-stress medical screening.
• Exposure Calculations: Computing time-weighted average (TWA) heat exposures and estimating metabolic heat loads.