Singapore to strengthen heat stress protection for outdoor workers, with four measures becoming mandatory

From 1 December 2026, employers will have to provide heat stress training, cool drinking water, emergency cooling supplies, and suitable protective clothing, as part of MOM’s enhanced framework.

Singapore is strengthening heat stress protection for outdoor workers, with four existing recommended practices set to become mandatory under an enhanced framework by the Ministry of Manpower (MOM).

Employers will have three months to put the necessary measures in place before the enhanced requirements take effect on 1 December 2026.

The move is part of Singapore’s broader Whole-of-Government efforts aiming to strengthen resilience to a warming climate, as heat-related risks become an increasingly important workplace safety and health concern.

Four heat stress measures to become mandatory

Under the enhanced Heat Stress Management Framework, employers will be required to implement four measures that were previously recommended for outdoor work.

These are:

• establish a heat stress training programme for workers exposed to heat,
• provide cool drinking water near work areas,
• ensure cold water, ice packs or water spray are on standby for emergency response, and
• provide suitable clothing that can mitigate or protect workers from excessive heat, stress.

MOM said the four measures have already been widely adopted by employers. Making them mandatory is intended to ensure more consistent implementation across the industry.

The changes mean employers will need to review their existing heat stress management practices and close any gaps before the requirements come into effect.

New recommendation for shaded, cooled rest areas

Alongside the four mandatory measures, MOM has introduced a new recommended practice for employers to provide shaded rest areas that are well ventilated and well insulated or cooled.

The recommendation adds to existing measures aimed at helping workers manage heat exposure during outdoor work, particularly during rest and recovery periods.

The enhanced measures complement existing requirements under the Heat Stress Management Framework.

These include monitoring Wet Bulb Globe Temperature (WBGT), ensuring workers hydrate regularly, providing adequate rest breaks under shade, acclimatising workers to heat, and putting emergency response plans in place.

Together, the measures are intended to strengthen employers’ management of heat stress risks through better worker preparedness, hydration, emergency response, and workplace conditions.

Employers given three months to prepare

The enhancements were developed in consultation with tripartite partners, industry stakeholders, and relevant government agencies.

Dinesh Vasu Dash, Minister of State for Manpower highlighted that heat stress is an increasingly important workplace safety and health issue, particularly for workers carrying out outdoor work.

As Singapore works to strengthen its resilience to rising temperatures, he said employers also need to take proactive steps to protect workers from heat-related risks. The enhanced measures, he added, provide clearer expectations for employers while strengthening protection for workers.

MOS Dinesh encouraged employers to use the three-month period to review their workplace practices and put the necessary measures in place before 1 December 2026.

He emphasised that better management of heat stress can not only safeguard workers’ health and wellbeing, but also help employers reduce downtime, maintain productivity and support business continuity.

What employers need to prepare for

MOM said it will continue to support employers through outreach and engagement, while working with tripartite partners and industry stakeholders to facilitate implementation of the enhanced measures.

With the enhanced requirements taking effect on 1 December, the coming three months give employers time to assess their current arrangements and make the necessary changes.

For outdoor workers, the latest measures strengthen the safeguards already in place as Singapore prepares workplaces for a hotter climate.

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Infographic / MOM