French authorities have introduced new safety measures for construction sites to protect workers from extreme heat during the July 2026 heatwave.

These changes address the immediate health risks posed by soaring temperatures. By adjusting working hours and increasing oversight, the government aims to prevent heat-related illnesses and fatalities among outdoor laborers.

In the Hérault department, the prefect issued an order allowing construction companies to begin work as early as 6 a.m. [1]. This shift allows crews to complete the most physically demanding tasks before the peak intensity of the afternoon sun. This measure reflects a broader effort to adapt labor schedules to volatile weather patterns.

Beyond shifted hours, the Service de l'économie et de l'emploi has reminded companies of their legal obligations during heatwaves [2]. Mandatory requirements include the provision of adequate drinking water, and the implementation of regular breaks [2]. Employers are also expected to provide adapted equipment and cooling areas to ensure worker safety [3].

To ensure compliance, labor inspectors are conducting field visits at factories and construction sites [4]. These inspectors are verifying the availability of refrigerated water and checking if climate-controlled cabins are operational [4]. Such enforcement is intended to ensure that safety guidelines are not ignored under the pressure of project deadlines.

While some regional authorities have already implemented these changes, other national discussions continue. Some social partners have suggested forming a working group after the summer break to further refine temperature thresholds and shifted schedules [5]. This suggests a transition from emergency temporary measures toward a permanent regulatory framework for extreme heat.

“Construction work may start as early as 6 a.m.”

The shift toward mandated early start times and increased state surveillance of worksites signals a growing recognition that traditional labor laws are insufficient for the increasing frequency of extreme heat events. By formalizing these adaptations, France is moving toward a systemic integration of climate resilience into its occupational health and safety regulations.