Singapore MOM Mandates New Heat Stress Measures for Outdoor Workers

The following is an abridgement of an article originally published by Singapore MOM Press Releases.

Framework Enhancements

Singapore’s Ministry of Manpower announced updates to its Heat Stress Management Framework to increase protections for outdoor workers. Employers have been given three months to implement the measures before they become legally mandatory on 1 December 2026.

Mandatory Requirements

The revised policy transitions four previously recommended practices into mandatory employer obligations:

• Establishing a heat stress training program for workers exposed to heat.
• Providing a cool drinking water supply near work areas.
• Maintaining emergency response resources on standby, including cold water, ice packs, or water spray.
• Providing suitable clothing designed to mitigate or protect workers from excessive heat stress.

New Recommendations and Existing Controls

MOM also introduced a new recommended practice encouraging employers to provide shaded rest areas that are well ventilated and well insulated or cooled.

The ministry stated that the new rules complement existing framework requirements, which include Wet Bulb Globe Temperature monitoring, mandatory hydration, scheduled rest breaks under shade, heat acclimatization processes, and emergency planning.

Ministerial Statement

Minister of State for Manpower Dinesh Vasu Dash stated:

"Heat stress is an increasingly important workplace safety and health issue, particularly for workers carrying out outdoor work. As part of Singapore’s broader efforts to strengthen our resilience to rising temperatures, employers must also take proactive steps to protect workers from heat-related risks. These enhanced measures provide clearer expectations for employers while strengthening protection for workers. I encourage employers to use the next three months to review their workplace practices and put the necessary measures in place before the enhancements take effect on 1 December 2026."