Reference Decision: cc • N° 96-45.659 • 1999-01-12 • View Decision →
Imagine: you are a business owner in Sophia-Antipolis, and your employees announce a strike. The union has filed a notice, but without specifying the exact start and end time. What should you do? Do employees have the right to stop work at any time? This question, crucial for public services, was decided by the Court of Cassation on 12 January 1999 (n° 96-45.659).
Under French law, the right to strike is a constitutional right, but in public services (such as transport, education, health) it is governed by a mandatory notice requirement. This notice must be given by a representative trade union and, to be valid, must mention the start and end time of the work stoppage. But note: employees, who alone hold the right to strike, are not required to stop work for the entire period indicated in the notice. In other words, an employee may decide to strike only part of that period.
This decision answers a practical question: is a notice that overlaps several periods or does not mention the times valid? The Court of Cassation overturned lower court judges who had not checked whether the overlapping of notices was compatible with the negotiation period. In short, judges must ensure that the notice allows genuine negotiation between the parties. For employers in the public sector, particularly in the Grasse area, this decision is a reminder: the notice must be precise, but employees retain their freedom to strike.
The Facts: A Story Like Many Others
The case began in a public service, probably a local authority or a public company. A representative union filed a strike notice for a period from 30 June, 00:00 hours, to 9 July 1994, 08:00 hours. But other notices were subsequently filed, creating an overlap. The employer challenged the validity of these notices, arguing that they did not comply with legal requirements.
The dispute went to the employment tribunal, then to the court of appeal. The lower court judges decided that the first notice was not invalid and that there was no need to examine the validity of subsequent notices. But they failed to check a key point: was the overlap of notices compatible with the negotiation period that must take place during the notice period? Indeed, Article L. 521-3 of the Labour Code (now L. 2512-2) requires that the notice allows negotiation between the employer and the unions. If notices overlap, negotiation may be disrupted.
The employer appealed to the Court of Cassation. The Court of Cassation upheld the appeal: the lower court judges had flawed their decision by failing to consider whether the overlapping of notices was compatible with negotiation. In other words, they should have examined the validity of each notice in light of this requirement. This case illustrates the subtleties of the right to strike in public services: a notice must be valid, but the individual freedom of the employee to strike or not remains absolute.
The Reasoning of the Court — Analysed
The Court of Cassation relies on Article L. 521-3 of the Labour Code (now codified in Article L. 2512-2) which provides: 'In public services, a strike must be preceded by a notice. The notice is given by a representative trade union. It mentions the start and end time of the work stoppage.' The Court strictly interprets this obligation: the notice must be sufficiently precise to allow negotiation.
In this case, the lower court judges had held that the first notice was not invalid and that there was no need to examine subsequent notices. But the Court of Cassation criticised them for not verifying whether the overlapping of notices was compatible with the negotiation period. In short, if several notices overlap, negotiation becomes impossible: which interlocutor? Which period? The right to strike must not hinder the right to negotiation.
This reasoning confirms consistent case law: the notice must be a clear framework for negotiation, but employees remain free to strike for all or part of that period. The Court recalls that 'employees, who alone hold the right to strike, are not required to stop work for the entire duration indicated by the notice.' In other words, an employee may stop work for one hour, one day, or the entire period, without the employer being able to penalise them for unauthorised absence.
However, note: if the notice is irregular (for example, without precise times), the strike may be considered unlawful, and the employer may withhold salary or take disciplinary action. But in this case, the Court did not rule on the validity of the notice itself; it remitted the case for the lower court to examine the issue of overlap. This is a procedural decision, but it has important practical implications.
What This Means for You — Practical Consequences
For public sector employers (local authorities, hospitals, schools, public transport in Grasse or Sophia-Antipolis): you must demand a precise notice, with start and end times. If a union files a vague notice, you can challenge it before the judicial court (interim proceedings). But you cannot prevent the strike itself: only the absence of a notice or an irregular notice can make it unlawful. undefined, I have dealt with cases where town halls suffered surprise strikes due to lack of proper notice. Result: paralysed services and dissatisfied users.
For employees: you have the right to strike even if the notice covers a longer period. You can stop work one day and resume the next, without this being considered a rolling strike (except in cases of abuse). But note: if you participate in a strike without a valid notice, you risk a salary deduction and disciplinary action. So check that the notice mentions start and end times.
For users (parents of pupils in Mougins, SNCF passengers at Grasse station): this decision does not directly change your situation, but it ensures that notices are taken seriously. In the event of a strike, services must provide a minimum service, but if the notice is irregular, the strike can be declared unlawful and employees compelled to work. Concrete example: if a union files a notice for a strike of urban buses in Sophia-Antipolis without an end time, you can challenge the strike before an interim judge to have the service restored.
Four Tips to Avoid This Type of Dispute
- Demand a written and precise notice: as an employer, systematically ask the union to mention the exact start and end time of the strike. Keep this document to prove validity.
- Check the representativeness of the union: only representative unions can file a valid notice. Consult the list of representative unions in your sector or company.
- Anticipate negotiation: upon receipt of the notice, engage in negotiation with the union to try to avoid the strike. If the notice is too broad, propose adjustments.
- In case of strike, do not penalise employees who do not strike the entire period: the law allows them to stop work intermittently. Salary deduction is possible, but not disciplinary action.
Further Reading: Related Case Law and Developments
This decision is part of a series of Court of Cassation rulings on the right to strike in public services. One can cite the decision of 13 December 2000 (n° 98-43.456) which specifies that the notice must be given 'by a trade union organisation representative at national level' and not by a company union branch. More recently, the Court of Cassation ruled (Soc., 12 January 2011, n° 09-40.252) that the notice must mention the reason for the strike, failing which it is irregular.
The trend is therefore towards strengthening the formal requirements of the notice, to protect both the right to strike and the right to negotiation. Judges are increasingly strict about the precision of times and reasons. In the future, we can expect courts to more frequently annul overly vague notices, which will secure employers but could reduce the effectiveness of the right to strike.
Checklist Before Acting
- Am I affected by this decision? Yes, if you work in a public service (administration, hospital, transport, education) or if you employ employees in this sector in Mougins, Grasse or Sophia-Antipolis.
- Is the notice received valid? Check: representative union? Mention of start and end times? Reason? If not, you can challenge it.
- What to do if the strike takes place without a valid notice? Apply to the interim judge to have the strike declared unlawful and to request a return to work. You can also withhold the salary of strikers.
- Can I penalise an employee who strikes only part of the period covered by the notice? No, the law allows this. You can only withhold salary for the hours not worked.
- How long does the procedure take? An interim application can be decided in a few days. An action on the merits can take several months.
Are you in a similar situation? A 30-minute initial consultation with Maître Zakine (€45) can save you months of procedure — and often much more. Book an appointment →

