How to Challenge an Occupational Physician’s Inaptitude Notice Within 15 Days?

The occupational physician has issued an inaptitude notice and you disagree? Whether you are an employer or an employee, there is a specific remedy available before the Conseil de prud’hommes (Labor Court) — but be careful, the deadline is only 15 days. After this period, the notice becomes definitive and binding on all parties, including the judge. Here’s how to effectively contest an inaptitude notice.

What is the Remedy Against an Inaptitude Notice from the Occupational Physician?

The Labour Code provides for a specific remedy before the Conseil de prud’hommes to contest medical opinions from the occupational health service that are “based on medical elements”: fitness notices, inaptitude notices, and proposals for job adjustments. This remedy allows the judge to assess the validity of the notice, possibly with the assistance of a medical expert designated by the court.

This remedy is the only mechanism that allows for questioning the medical qualification (fitness/inaptitude) and the implications of the recommendations. No other remedy—in particular within the context of a subsequent dismissal dispute—allows for contesting the validity of the notice once the deadline has expired.

What is the Deadline to Contest an Inaptitude Notice?

The deadline is 15 days from the receipt of the notice by the contesting party (and not from the date of issuance by the physician). This deadline has an absolute extinctive effect: after 15 days, the notice binds the parties and the Labour Court judge. It is no longer possible to contest:

The validity of the notice.
Its comments (including minor errors such as the job title).
The diligences of the physician (in compliance with Article R. 4624-42).

The Cour de cassation has confirmed this without ambiguity: “after the 15-day period, the occupational physician’s notice binds the parties and the judge” (Cass. soc., December 7, 2022, n° 21-23.662; October 25, 2023, n° 22-18.303).

How to Prove the Date of Receipt of the Notice?

The certain date of notification is crucial as it starts the deadline. Valid proof includes:

The acknowledgment of receipt of a registered letter (LRAR).
Hand delivery with a dated and signed attendance sheet.
A reliable electronic acknowledgment with timestamp.

Warning: hand delivery without signature or attendance does not start the deadline. The Cour de cassation has been very clear on this point (Cass. soc., March 2, 2022, n° 20-21.715). Similarly, a subsequent notification (via simple email or a second letter) does not retroactively validate the absence of a certain date at the time of the first delivery (Cass. soc., December 4, 2024, n° 23-18.128).

Practical Tip for Employers: upon delivering the notice, ensure a signed attendance sheet is obtained with the date and keep it safely. This document will serve as proof in case of a dispute regarding the start date of the deadline.

Who Can Challenge the Inaptitude Notice?

The remedy is open to both the employee and the employer, each for their own grievances:

The employee can contest if they believe the inaptitude is unjustified or that the physician’s recommendations are inappropriate.
The employer can contest if they consider the opinion too restrictive (for instance, if reintegration is unjustifiably denied) or that the imposed restrictions are disproportionate.

How to Bring a Case Before the Conseil de Prud’hommes?

The application is made to the Conseil de prud’hommes, often in the form of urgent proceedings (accelerated procedure). Here are typical requests to make:

Appointment of a medical expert to evaluate the employee and assess the validity of the notice.
Communication to the judge of the medical elements on which the occupational physician relied (under medical confidentiality).
Confirmation or rejection of the inaptitude notice.
If necessary, request for a new medical examination.

Important Note: the application to the CPH is not suspensive. The employer must continue the procedure in parallel: search for reinstatement, consult with the CSE (Social and Economic Committee), and comply with the D+30 deadline for the resumption of salary.

What Strategy to Adopt During the Challenge?

Contesting the notice creates a dual track situation that the employer must manage rigorously:

Track A: Judicial Remedy

Submit the application within 15 days.
Prepare medical and factual elements for the expert.
Await the decision of the CPH.

Track B: Reinstatement Procedure (in parallel)

Continue searching for reintegration (unless a valid exemption applies).
Consult the CSE.
Respect the D+30 countdown—the resumption of salary is owed even in case of a remedy (Cass. soc., January 10, 2024, n° 22-13.464).

The key question is the timing of the termination decision: if the remedy has a good chance of success, it may be prudent to postpone the notification of dismissal until the CPH decision, to avoid dismissing based on a notice that might be overturned. Conversely, one must anticipate the cost of resuming salary at D+30.

What Happens Depending on the Outcome of the Remedy?

The Notice is Confirmed

The procedure resumes its normal course: the employer continues (or concludes) the search for reinstatement and, where appropriate, proceeds with dismissal for inaptitude and impossibility of reinstating.

The Notice is Rejected

The situation changes radically: there is no longer any inaptitude, and thus no legal ground for dismissal due to inaptitude. The employer must reinstate the employee to their position (possibly modified) or, if a new examination is ordered, wait for its conclusions.

No Appeal Filed Within 15 Days

The notice becomes definitive and irrevocable. The employer follows the standard procedure: reinstatement → CSE → offers → decision (effective reinstatement or dismissal).

What Errors in the Notice Can Be Contested?

The D+15 appeal covers all medical aspects of the notice, including:

The inaptitude qualification itself.
The implications of the recommendations (restrictions, adjustments).
The existence or absence of exemption from reinstatement.
Any material errors in the notice (incorrect job title, questionable mentions).

Pitfall to Avoid: material errors must be contested via the D+15 remedy. They can no longer be invoked in a subsequent dismissal dispute (Cass. soc., October 25, 2023, n° 22-18.303). Do not let the deadline pass by assuming the error is “minor”.

Operational Script: Contesting an Inaptitude Notice in 4 Steps

Timestamp: record both the issue date AND the receipt date of the notice (with supporting documents).
Decide within 10 days: “Do we contest?” If yes, seize the CPH and prepare the requests (expert, communication of elements, new examination).
Run in parallel: continue the search for reinstatement and the CSE sequence, maintaining a log with proofs.
Synchronize: upon receipt of the CPH decision, revise the course—if the notice is confirmed, proceed; if it is rejected, recalibrate.

Documents to Retain to Secure the File

Inaptitude notice (original version).
Proof(s) of receipt (acknowledgment of receipt, attendance, timestamp).
Correspondence and emails exchanged with the occupational health service.
CPH application and any resulting orders.
Expert report and conclusions from the medical expert.
Log of the search for reinstatement.
Minutes of the CSE.
Reinstatement offers and employee responses.
Termination letter or measures of reinstatement.

FAQ — Contestation of the Inaptitude Notice

Is the 15-day Deadline a Hard Deadline?

The deadline begins from the day the notice is received. It is a deadline of 15 calendar days. The application to the CPH must occur within this period; otherwise, the notice becomes definitively binding.

Can the Notice Be Contested After Termination?

No. If the 15 days have passed without a remedy, the notice is definitive. The employee will not be able to contest the notice in a subsequent dismissal dispute (Cass. soc., December 7, 2022, n° 21-23.662).

Must the Employer Continue the Procedure During the Challenge?

Yes. The application to the CPH is not suspensive. The employer must continue their search for reinstatement and adhere to the D+30 deadline for the resumption of salary.

What If the Date of Receipt Cannot Be Proven?

If no evidence of a certain date exists, the 15-day deadline does not commence. The employer should secure this proof promptly upon notification to avoid late contestation.

Do you need to contest an inaptitude notice or secure your procedure? Contact DAIRIA lawyers for personalized guidance.

To learn more, check our complete guide to dismissal.

Employer Obligations Regarding Health and Safety at Work

The employer has a duty of safety toward its employees, based on Article L.4121-1 of the Labour Code. They must take the necessary measures to ensure the safety and protect the physical and mental health of workers, which includes:

Actions to prevent professional risks and hardship.
Information and training initiatives.
Setting up an organization and means adapted to such goals.

These measures are based on the 9 general principles of prevention defined in Article L.4121-2: avoiding risks, evaluating those that cannot be avoided, combating risks at source, adapting work to the human, considering the state of technical evolution, replacing what is dangerous, planning prevention, prioritizing collective protection measures, providing appropriate instructions.

The Document Unique d’Évaluation des Risques Professionnels (DUERP), required by Article R.4121-1, is mandatory in any company from the first employee. It must be updated at least annually in companies with at least 11 employees, and whenever significant changes modify working conditions.

Law n° 2021-1018 of August 2, 2021, reinforcing health prevention at work, has expanded obligations regarding DUERP, notably mandating its retention for 40 years and digital submission. Visit our Labour Law page for more details.

Managing Inaptitude: Procedure and Obligations

The inaptitude of the employee, determined by the occupational physician according to the procedure outlined in Article L.4624-4 of the Labour Code, imposes on the employer an obligation of reinstatement (Article L.1226-2 for non-professional inaptitude, L.1226-10 for professionally-originating inaptitude).

The procedure unfolds as follows:

The occupational physician determines inaptitude after medical examination and, if necessary, a review of the job and working conditions.
The employer has a one-month timeframe from the inaptitude notice to reintegrate the employee or dismiss them.
The search for reinstatement must be earnest and comprehensive, covering all available positions within the company and its group.
The CSE must be consulted on reinstatement proposals (Articles L.1226-2 and L.1226-10).
If reinstatement is impossible (or if the occupational physician states that maintaining employment would be severely detrimental to health), the employer can proceed with dismissal for inaptitude.

The Cour de cassation reminded in a ruling that the employer cannot merely argue the absence of an available position without justifying the concrete steps taken to reintegrate the employee within the company and the group.

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