Which of the following is an Administrative Control for Thermal Stress?

• A. Ice garments
• B. Acclimatization
• C. Reflective clothing
• D. Circulation air systems

Answer: (B)

Administrative controls are policy-based measures designed to reduce exposure without changing the physical environment or requiring new gear. Acclimatization fits this because it involves gradually increasing exposure to hot conditions over days to weeks so the body's thermoregulatory system adapts, lowering heart rate and core temperature responses during work. This is implemented through structured work-rest schedules, progressive workload increments, and worker training, making it a procedural approach rather than a device or clothing change. The other options provide direct cooling or environmental changes (ice garments as cooling gear, reflective clothing to reduce heat absorption, and circulation air systems to alter the workplace climate), but they do not constitute administrative controls.