Compliance, Hospitality, Service Sector

July 7, 2026

ARS Hotel: What Are the Requirements for Establishments, and How Can They Prepare?

When we think about a hotel’s obligations, we often think of fire safety, accessibility, hotel ratings, hygiene, and guest comfort.
But another issue can quickly become strategic: health inspections conducted by the ARS.

The ARS, or Regional Health Agency, focuses in particular on public health issues in facilities open to the public.

For hotels, this primarily involves a sensitive issue: managing water-related health risks.

And more specifically:

  • domestic hot water
  • the risk of Legionella
  • temperature monitoring
  • traceability
  • the health record

Why is this important?

Because every day, hotels welcome guests who use showers, faucets, bathtubs, spas, and other hot-water facilities.
And if the water system isn’t properly monitored, certain issues may go unnoticed… until the day they become a health, regulatory, or reputational problem.

What is the role of the ARS in a hotel?

Hotel bathroom with a bathtub and a bathrobe hanging on a hook.

The ARS's mission is to protect public health.

In the hospitality industry, their role may include, among other things:

  • health risk prevention
  • water quality
  • Legionella risk monitoring
  • Support for facilities open to the public
  • verification of certain oversight obligations

The ARSs note, in particular, that operators of establishments open to the public that have central hot-water systems are required to monitor for Legionella and to monitor water temperature.

In other words, this is not a theoretical issue.
It directly affects hotels equipped with central hot-water systems.

And in many institutions, this is an issue that people think they have under control… until an audit or an incident reveals a lack of oversight.

ARS Hotel: What Are the Key Points to Watch Out For?

In a hotel, the ARS is not concerned with the building in the same way that a building automation system or an engineering firm is.

It focuses primarily on health risks.
And domestic hot water is very often among the major topics.

The most common areas of concern are:

  • the temperature of domestic hot water
  • network monitoring
  • the risk of Legionella
  • the analyses conducted
  • facility maintenance
  • traceability of actions
  • Maintaining the health record

The decree of February 1, 2010, requires, among other things, that the procedures and results of monitoring, descriptive information on domestic hot water systems, and details regarding their maintenance be recorded in a health record kept available to health authorities.

So the real issue isn't just about “doing.”
It's also about being able to demonstrate that follow-up is being carried out.

Why Legionnaires' disease is a key issue for hotels

Legionellosis is a respiratory infection that can result from inhaling fine water droplets contaminated with Legionella bacteria.

In a hotel, certain practices can be sensitive:

  • showers
  • hand-held showerheads
  • bathtubs
  • spas
  • centralized domestic hot water systems

The ARSs emphasize that the presence of Legionella in water is a major public health concern, particularly in domestic hot water systems.

For a hotel, the risk is therefore twofold.

On the one hand:

  • a health risk to customers

Because a water-related health issue is never just a technical matter.
It can quickly become a matter of trust.

DHW Temperature in Hotels: Why Monitoring Is Essential

The temperature of domestic hot water is one of the first indicators to monitor.

Why?
Because it provides concrete evidence of control over the network.

The Ministry of Health notes that monitoring water temperature throughout the domestic hot water system provides a first-line set of indicators that are accessible on a daily basis and reflect whether or not the risk of Legionella proliferation is under control.

To put it more simply, this means that if the temperature isn't monitored, it becomes difficult to know whether the network is under control.

And in a hotel, there can be many risky situations:

  • rarely used areas
  • vacant rooms
  • changes in occupancy
  • long partial closure
  • complex network
  • water sources located far from production sites

That is precisely where monitoring becomes essential.

ARS Hotel Inspection: Why Traceability Matters Just as Much as Action

When it comes to health risks, an untraceable action can quickly become difficult to justify.

You can conduct inspections, maintain your facilities, and take corrective actions, but in the event of an inspection, you must be able to prove it.
That is the purpose of the health log or health record.

It allows you to centralize:

  • temperature readings
  • Legionella testing
  • maintenance operations
  • corrective actions
  • any incidents
  • the descriptive elements of the network

The order dated February 1, 2010, specifies that this health record must be made available to health authorities.

For a hotel, traceability is therefore not just a formality. It serves as a safeguard because it demonstrates that the establishment monitors, documents, and maintains control over its facilities.

Health Log for ARS Inspections in Hotels

Common Mistakes That Weaken Hotels

In many institutions, the challenges do not stem from a lack of commitment.
They often stem from monitoring that is too manual, too sporadic, or too scattered.

The most common mistakes are:

  • cause temperatures to rise erratically
  • Do not centralize the data
  • to skip certain checkpoints
  • Do not log actions
  • detecting problems too late
  • rely solely on field teams
  • not having alerts in the event of an anomaly

These situations may seem minor, but they create vulnerability.
Especially when the institution needs to quickly demonstrate what has been done.

In fact, an ARS in the PACA region noted in a document addressed to tourist establishments that many of them were found to be noncompliant with regard to Legionella testing, temperature monitoring, health logs, or facility maintenance.

So this is a very practical issue, and it directly affects hotels.

How Can a Hotel Better Prepare for an ARS Inspection?

The goal is not to treat an ARS inspection as an emergency.
The goal is to be prepared.

To achieve this, several best practices are essential:

  • Identify the network's vulnerabilities
  • Regularly monitor DHW temperatures
  • keep a clear record
  • keep the health record up to date
  • document maintenance activities
  • establish procedures to follow in the event of an anomaly
  • step up monitoring after an incident or malfunction

The order also stipulates that monitoring must be stepped up in the event of an incident or malfunction in the domestic hot water system that could promote the proliferation of Legionella.

Preparation is therefore based on a simple idea: don't wait until the test to look for information.
The information must already exist, be reliable, and be accessible.

Why Manual Tracking Quickly Reaches Its Limits

In a small facility, manual tracking may seem sufficient, but as soon as the building becomes more complex, its limitations quickly become apparent.

A hotel may have:

  • several stories
  • several wings
  • rooms occupied irregularly
  • remote water sources
  • spa or wellness areas
  • periods of high and low occupancy

In this context, manually tracking each item quickly becomes time-consuming.
And above all, it increases the risk of overlooking something.

The problem isn't just the time spent. It's also the lack of continuous visibility.

A one-time reading provides information at a specific point in time, but it does not always allow for the rapid detection of a deviation between two checks.

How Supervision Simplifies Health Monitoring

Laptop displaying an Ewattch interface for technical and energy monitoring in facility management.

Supervision does not replace regulatory obligations, but it can help hotels organize themselves more effectively.

By tracking certain key indicators, it makes it possible to:

  • centralize data
  • log the measurements
  • detect deviations more quickly
  • make it easier to access information
  • notify the teams in the event of an anomaly
  • reduce repetitive manual tasks

In practical terms, this allows teams to shift from a reactive approach to a more proactive one.

Less searching through scattered files. Fewer oversights. Greater visibility.
And a better ability to demonstrate the follow-up that has been done.

For a hotel, it means greater peace of mind.

Hotel ARS: Best Practices to Keep in Mind

To approach ARS-related issues with greater confidence, a hotel must be able to answer a few simple questions:

  • Are DHW temperatures monitored regularly?
  • Have the network's vulnerabilities been identified?
  • Is the data archived?
  • Is the health record up to date?
  • Are maintenance tasks tracked?
  • Do anomalies trigger a specific action?
  • Do the teams know where to find the information?

If the answer is unclear, the risk isn’t just regulatory.
It’s also operational, because a lack of follow-up can lead to more emergencies, more stress for teams, and greater difficulty in demonstrating the actions taken.

Mastering Health Monitoring at Your Hotel

For a hotel, the ARS is not something to be addressed only when an inspection is approaching.
It is an ongoing issue of health and safety management.

At the heart of this issue, we often find the same topics: domestic hot water, DHW temperature, Legionella, health records, traceability, and maintenance.

The most well-organized facilities are not the ones that improvise during an inspection.
They are the ones that already have a clear overview of their facilities, a structured monitoring system, and a useful history of data.

In the hospitality industry, health and safety compliance depends as much on the actions taken as on the ability to track, document, and verify them.

Ready to simplify health monitoring at your hotel?

The exterior facade of a modern hotel, illustrating a commercial building optimized for guest comfort, operational efficiency, and energy performance.

Temperature monitoring, traceability, and the detection of deviations can quickly become time-consuming when they rely solely on manual processes.

With Ewattch, you can centralize your data, better monitor your equipment, and gain greater visibility into critical areas of your facility.

The goal? To help your teams anticipate, document, and take action with greater peace of mind.

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