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645 Heat Injury and Illness Prevention: Employee Skip to main content

Heat Stress Management Program (HSMP)

Overview of HSMP

Working in hot environments poses significant risks, including heat exhaustion, heat cramps, and even heat stroke, which can be life-threatening. To effectively protect workers, your employer is required to develop and implement a written Heat Stress Management Program (HSMP) tailored to your specific worksite. This program is essential whenever workers are exposed to temperatures at or above 80°F.

Purpose of the HSMP

The primary goal of the HSMP is to safeguard employees by clearly defining measures that prevent heat-related illnesses. Developed in consultation with a qualified person, the program must reflect the specific conditions and unique risks present at your job site. A copy of this important program must be kept accessible at all times on-site.

Key Components of the HSMP

Worker Acclimatization

Workers new to hot environments, or returning after prolonged absence, need time to gradually adapt. The HSMP includes a structured plan that allows employees to safely build a tolerance to working in hot conditions.

Assessing Heat Exposure

The program must clearly outline methods for assessing and regularly monitoring workplace exposure to heat stress. This ensures timely identification and management of heat-related hazards.

Hydration Requirements

Consistent hydration is crucial. Employers must provide ample potable drinking water. Additionally, electrolyte beverages must be supplied for employees performing strenuous tasks lasting more than two hours.

Emergency Action Plans

Clear and effective emergency response protocols must be detailed in the HSMP, covering:

  • Immediate on-site first aid, including rapid cooling measures.
  • Procedures for promptly contacting emergency medical services.
Your employer must create a written heat stress management program (HSMP) before you work at or above 80°F.

Knowledge Check Choose the best answer for the question.

4-1. Which component of the HSMP helps workers gradually adapt to hot environments?