What rules govern the geolocation of construction equipment?
Summary for decision-makers
What regulations require before geolocating a piece of construction equipment
The geolocation of construction equipment is lawful when it serves a purpose recognized by the CNIL (French Data Protection Authority), primarily the security of the equipment and its location in case of theft. It requires individual notification of employees, consultation with the works council in companies with at least 50 employees, and data retention periods limited to two months in principle. Monitoring working time is only permitted as a last resort.
The geolocation of construction equipment is lawful under three conditions: a legitimate purpose, prior notification of employees, and a limited data retention period. Combating theft is one of these conditions, while monitoring working hours is almost never used. The June 2026 recommendation does not change anything for professional fleets.
Why are the thefts of equipment forcing the building to upgrade its equipment?
Vehicle thefts are declining in France, while thefts of construction equipment are on the rise. The ranking published on February 18, 2026, by France Assureurs and Argos, lists 64,088 vehicles stolen in 2025, compared to 70,459 the previous year, representing a 9% decrease . Over the same period, earthmoving, lifting, gardening, and agricultural equipment accounted for 1,529 thefts, a 14% increase.
The most striking difference lies in the recovery rate. 249 of these machines were recovered in 2025, representing 16,3% of the total, while 40% of stolen cars are recovered, a third of them in less than a week. Therefore, an excavator or aerial work platform that disappears from a construction site has a five in six chance of never returning.
The two reasons given by insurers relate to the nature of the equipment, the lack of registration , and the lack of identification . A vehicle has neither a license plate nor a central database comparable to that of road vehicles, and nothing allows an inspection to link the machine to its owner. It is this gap that onboard telematics fills, just as the marking or identification of company vehicles does.
At what point does the location of a device become personal data?
A telematics unit produces two types of information. One describes the machine, including operating hours, fuel consumption, fault codes, and location. The other describes, indirectly, the person operating it. The switch between these two types of information depends not on the installed hardware, but on the company's organizational structure.
The General Data Protection Regulation (GDPR) defines personal data as any information relating to an identified or identifiable natural person . Therefore, as soon as a vehicle is assigned to a specific person, or a schedule reveals who was driving it at a particular time, its location becomes personal data and the processing falls within the scope of the regulation.
The consequence is immediate. Article L. 1121-1 of the French Labor Code only allows restrictions on an employee's freedoms if they are justified by the nature of the task to be performed and proportionate to the objective pursued. In its guidance document on monitoring the activity of employees, updated on July 9, 2026 , the French Data Protection Authority (CNIL) concludes that continuous surveillance of personnel generally constitutes an excessive infringement. Geographic information systems applied to construction sites encounter the same limitation as soon as they track people rather than structures.
What purposes does the CNIL allow and which does it exclude?
The CNIL (French Data Protection Authority) does not reason in terms of technology but in terms of purpose, that is to say, declared objectives. The same device is lawful or not depending on its use. Its guide on the geolocation of employee vehicles lists acceptable and unacceptable objectives.
| Permitted purposes | Excluded uses |
|---|---|
| Safety and security of the employee, goods or vehicle, including location in case of theft | Employee under constant surveillance |
| Better allocation of resources for interventions in dispersed locations | Speed limit enforcement |
| Monitoring and invoicing of a transport service | Monitoring of employees who are free to organize their own travel |
| Compliance with a legal or regulatory obligation | Monitoring of employee representatives in the exercise of their mandate |
| Checking compliance with vehicle usage rules | Collection outside working hours, including home-to-work journeys and breaks |
Two points are of direct interest to a construction company. Combating theft is among the accepted objectives, thus securing the primary intended use of a fleet of vehicles. However, collection must cease outside of working hours, which implies a means of deactivation when the driver parks the vehicle at home, a common situation as soon as worksites are dispersed.
Monitoring working hours through geolocation remains the exception
This is the point on which companies most often go wrong. The French Council of State , in a decision dated December 15 , 2017 (no . 403776), ruled that the use of a geolocation system to monitor working hours is only lawful when such monitoring cannot be carried out by any other means . In the case at hand, the employer had access to self-reported data, and the data collection was deemed excessive.
The CNIL's position is identical. Monitoring working time is only permitted as a secondary measure, and only when no other system can ensure it. A company equipped with a time clock, site reports, or a time-tracking application cannot therefore invoke this reason, since it already has another means at its disposal.
Two categories of people are exempt from this system. Employees who have freedom in organizing their travel cannot be monitored for this purpose, and employee representatives can never be monitored in the exercise of their mandate.
What formalities must be completed before putting the device into service?
The obligations are divided into three stages: informing, consulting, and documenting. Article L. 1222-4 of the French Labor Code prohibits collecting information concerning an employee personally through a device that has not been previously disclosed to them. The information must be provided individually and specify the purpose, the data collected, its retention period, and its recipients.
The Social and Economic Committee (CSE) must be consulted before the implementation decision, pursuant to Article L. 2312-38 , in companies with at least 50 employees . Article L. 2312-8 further requires that the CSE be informed about the introduction of new technologies. The processing is recorded in the register of processing activities, and an impact assessment becomes necessary when it falls under the list established by the CNIL (French Data Protection Authority), which notably includes processing intended to constantly monitor employee activity and large-scale location tracking.
Finally, storage periods are limited purpose by purpose.
| Purpose of collection | Shelf life |
|---|---|
| Monitoring of current activity, general principle | 2 months |
| Route optimization or proof of interventions | 1 year |
| Monitoring of working time | 5 years |
These durations are configured within the tool itself, not in an internal memo, and maintaining a history as a precaution constitutes a breach in itself. The same reasoning applies to access, which is limited to authorized personnel and is logged, as with any building video surveillance system.
What the recommendation of April 16, 2026 changes for fleets
On April 16, 2026, the CNIL adopted a recommendation concerning the use of location data from connected vehicles, deliberation no . 2026-063, published on June 30, 2026. It deals with consent, the exercise of rights when several drivers take turns driving the same vehicle, and the location of a vehicle not returned.
Its scope requires careful reading. The text targets connected vehicles used by private individuals, whether owners or lessees, and expressly excludes company or service vehicles made available to employees by their employers . A construction company that geolocates its vans and equipment will therefore not find its rule here, and remains bound by the labor code and the CNIL's (French Data Protection Authority) guidelines on the geolocation of employee vehicles.
The tachograph falls under a different set of regulations, often confused with geolocation. Mandated by Regulation (EU) No 165/2014 , as amended by Regulation (EU) 2020/1054, it applies only to road transport. Its implementation schedule targets international transport, new vehicles over 3,5 tonnes since 21 August 2023 , replacement of older equipment by 31 December 2024 and then by 18 August 2025 , and commercial vehicles over 2,5 tonnes by 1 July 2026. Companies that do not engage in international transport are not subject to these regulations.
Distinguishing between these regimes avoids the most costly mistake: believing that technically compliant equipment is sufficient to make data processing lawful. The device itself is never the issue; compliance depends on the declared purpose, employee information, and data retention period, and these are what an audit examines. At the fleet level, equipment is evolving faster than the formalization that should accompany it, whether it concerns the vehicles themselves or the digital management of skips and leased equipment.
Frequently Asked Questions
What is the geolocation of a construction vehicle?
This involves tracking a machine's position using an onboard telematics unit, which also transmits operational data such as engine hours and fuel consumption. As soon as this information allows for the identification of the operator, even indirectly, it becomes personal data subject to the GDPR.
What is the difference between a tachograph and a geolocation device?
The tachograph is a regulatory device mandated by European Regulation No. 165/2014 for monitoring driving and rest times in road transport. The use of a GPS tracking device is optional for the company, subject to GDPR and labor law regulations, and is not mandatory.
How long can geolocation data be stored?
Two months in principle, according to the CNIL (French Data Protection Authority). This period extends to one year when the data is used to optimize routes or to prove interventions, and to five years when it is used to track working hours. Beyond that, retention becomes a breach of contract.
How to inform employees before installing a device?
Article L. 1222-4 of the French Labor Code mandates prior and individual notification. This notification specifies the purpose of the system, the data collected, its recipients, the retention period, and the rights of the individuals concerned. No system may collect information about them without their prior knowledge.
Is it possible to geolocate an employee to monitor their working hours?
Only when this control cannot be done by other means, the Council of State ruled on December 15, 2017. A company with a timekeeping system, site reports or a time entry application cannot therefore invoke this reason.
Should geolocation be disabled outside of working hours?
Yes. The CNIL (French Data Protection Authority) prohibits any data collection during breaks and commutes between home and work. The system must therefore include a deactivation mechanism, particularly when the driver returns the vehicle to their home between work sites.
Thematic glossary
Personal data
Any information relating to an identified or identifiable natural person, directly or indirectly. The position of a vehicle becomes identifiable as soon as it allows its operator to be traced back to it.
finality
The specific and declared purpose for which data is collected. It is this purpose, and not the technology used, that makes processing lawful or unlawful under the GDPR and the CNIL's doctrine.
Impact analysis
A documented study of the risks that a processing operation poses to individuals' rights is required, in particular for systems that constantly monitor employee activity.
Shelf life
The time frame after which data is deleted. This is configured within the tool, justified by the intended purpose, and communicated to the individuals concerned when they are informed.
On-board telematics
All the equipment installed on a vehicle or machine to remotely transmit its position and operating data to a fleet management platform.
Intelligent tachograph
Driving and rest time monitoring device, mandatory in international road transport according to a European timetable which reaches commercial vehicles over 2,5 t on July 1, 2026.