Regulatory developments concerning chemical, physical, and biological risks: what are the operational impacts?

Regulatory developments in occupational health rarely make headlines, but they have very concrete effects: they shift what a company must prove, what it must measure, and what it must improve. And when it comes to chemical, physical, or biological risks, the core issue is almost always the same: the gap between “we know” and “we control.”

Regarding chemical risk, the trend has been clear for several years: more substances are being regulated, exposure limit values are evolving, and traceability requirements are becoming stricter. In France, having a reliable reference framework is essential: INRS provides a database of occupational exposure limit values (OELVs), which is useful for structuring assessment and prevention. Added to this are European regulatory changes: one directive notably lowers limit values for lead and regulates diisocyanates, with very direct consequences for exposed companies (maintenance, painting, resins, adhesives, construction, industry).

Operationally, this does not simply mean “updating a safety data sheet.” It means revisiting your entire control strategy: substitution where possible, extraction/ventilation and maintenance of equipment, exposure monitoring when necessary, genuinely suitable PPE, training, and above all, document consistency. The sensitive point is often the reality on the ground: overly cumbersome procedures, workarounds, improvised storage, and simultaneous operations. This is where prevention fails if it remains purely “office-based.”

As for physical risks, two issues are becoming increasingly important: heat and ergonomics, particularly musculoskeletal disorders (MSDs). Since July 1, 2025, the prevention of heat-related risk has been strengthened in the French Labour Code, which means this risk must now be treated as a full occupational risk, with assessment and appropriate measures.

In practice, the impact is not simply to “send out a reminder.” It means organizing work differently: adjusting schedules, managing breaks, providing water, reviewing certain tasks, anticipating heat episodes, formalizing simple instructions, and carrying out field-level checks. Heat is also a safety issue: it increases the likelihood of errors, falls, and internal traffic accidents.

Regarding biological risks, many companies focus on the “obvious” sectors such as healthcare and laboratories. But biological risk also exists in more ordinary contexts: waste, sanitation, maintenance, cleaning, agri-food, work in degraded environments, mold, legionella, and so on.

The most frequent operational impact is not a lack of scientific knowledge; it is the lack of a clear framework. Who is exposed? At what times? Which actions really provide protection? Which hygiene rules are non-negotiable? How are incidents managed?

In all cases, the most effective strategy is to avoid management “by text” and instead manage “by exposure.” In other words: identify the jobs and situations where exposure is plausible, verify the existing control measures, fill in what is missing, and document what proves control. The best sign of maturity is not the quantity of documents; it is your ability to answer, without stress, three simple questions: where are our significant exposures, how are we reducing them, and how do we prove it?