Enhanced Heat Stress Measures for Outdoor Work

25 Aug 2026 Announcements

As Singapore continues to experience a warmer climate, outdoor workers are at increased risk of heat stress, particularly those performing physically demanding work.

To strengthen protection for workers exposed to heat, the Ministry of Manpower (MOM) has enhanced the existing Heat Stress Management Framework to better safeguard outdoor workers from heat-related risks. 

What Companies Must Do From 1 December 2026
Employers will be required to implement four enhanced measures for workers exposed to heat:

1. Provide heat stress-related training for workers exposed to heat.
   Training should help workers and supervisors recognise heat stress risks, understand the signs and symptoms of heat-related illness, and know the measures to take to protect themselves and their co-workers.
   
   
2. Provide cool drinking water near work areas.
   Workers must have easy access to cool drinking water and hydrate themselves regularly, especially during prolonged or physically demanding outdoor work.
   
   
3. Ensure cold water, ice packs or water sprays are on standby for emergency response.
   These cooling measures should be readily accessible so that prompt action can be taken if a worker shows signs of heat-related illness.
   
   
4. Provide suitable clothing to mitigate excessive heat stress.
   Depending on the work environment and level of risk, suitable attire may include loose-fitting, breathable and moisture-wicking clothing.
   
   

In addition to the above mandatory requirements, MOM has also introduced a new recommended practice that employers provide shaded rest areas that are well-ventilated, well-insulated or cooled.

Review and Maintain Heat Stress Measures
Employers should review their existing heat stress management measures and make the necessary preparations to comply with the enhanced requirements.

Employers should also continue to implement the existing heat stress measures applicable to their workplaces, based on the prevailing heat stress risk and Wet Bulb Globe Temperature (WBGT) levels.

A combination of measures, including acclimatisation, hydration, rest and shade, is important to protect workers from heat stress.

Find out more
For more information on managing heat stress at the workplace, refer to:
MOM's Heat Stress Measures for Outdoor Work
WSH Guidelines on Managing Heat Stress in the Workplace
Additional resources on heat stress