Freedom of conscience is one of the unconditionally guaranteed fundamental rights under the Basic Law. Nevertheless, Article 4, Paragraph 1 of the Basic Law does not grant an unrestricted right in an employment relationship to refuse to fulfill contractual duties by invoking personal convictions. Rather, a reasonable balance must be struck between the employee's conscientiously protected decision, which is protected by fundamental rights, and the employer's organizational and operational interests, which are also protected by constitutional law.

The Munich Labor Court had to assess this conflict in a case where a tram driver, for reasons of conscience, had refused to drive a tram bearing advertisements for the German Armed Forces (Bundeswehr). In its ruling of May 20, 2026 – 4 Ca 15395/25 – the court found that the employee was fundamentally obliged to take over the vehicle in question.

The decision is remarkable not only because of its political and social background. Rather, it touches upon a fundamental question of labor law: Under what conditions can an employee refuse to perform a duty owed under an employment contract, invoking Article 4 of the Basic Law?

I. Facts and Conflict Situation

The plaintiff was employed as a tram driver by a municipal transport company. He was recognized as a conscientious objector and, according to the court's findings, held a pacifist conviction.

The transport company operated a tram on its regular routes that, as part of an advertising contract, bore Bundeswehr advertising. The plaintiff refused to drive this vehicle. He justified his refusal by stating that by driving it, he would at least indirectly contribute to the dissemination of military advertising. This, he argued, was incompatible with his personal conscientious decision.

The employer, on the other hand, was of the opinion that driving all trams in the fleet belonged to the plaintiff's contractual duties. The employee was neither obliged to personally identify with the advertising message nor did he act as an advertiser himself. Furthermore, a permanent exemption of the plaintiff from duty on the vehicle in question would create additional organizational requirements for scheduling and fleet planning.

Thus, two legally protected interests directly confronted each other: the employee's freedom of conscience and the employer's operational directive and organizational interests.

II. Legal Starting Point: The Employer's Right to Issue Instructions

According to Section 106, Sentence 1 of the Trade, Commerce and Industry Regulation Act (GewO), the employer can specify the content, place, and time of work performance in accordance with equitable discretion, provided that these working conditions are not already determined by the employment contract, a works agreement, a collective bargaining agreement, or legal provisions.

The right to issue directives particularly entitles the employer to assign specific tasks to an employee within the contractually agreed scope of duties. For a tram driver, this generally includes the instruction to drive a specific vehicle from the available fleet.

However, the right to issue instructions is not unlimited. The employer's decision must correspond to equitable discretion. According to Section 315 of the German Civil Code (BGB), the essential circumstances of the individual case must be considered, and the respective interests must be weighed appropriately against each other.

Personal rights, religious beliefs, and conscientious decisions of the employee can limit this exercise of discretion. An instruction that completely disregards such interests can be inequitable and thus non-binding.

III. The Employee's Freedom of Conscience

Article 4, Paragraph 1 of the Basic Law guarantees freedom of conscience. It protects the serious decision of an individual, guided by categories of good and evil, which he or she feels to be absolutely binding.

Constitutional protection does not require that the conviction in question be shared by the social majority or considered objectively reasonable. Even unusual or politically controversial conscientious decisions generally fall within the scope of protection.

However, not every personal rejection of an activity leads to a labor-law-relevant conflict of conscience. A substantial inner compulsion is required. The employee must convincingly demonstrate that performing the activity is not merely unpleasant, but that he or she considers it morally inadmissible for themselves due to a serious conscientious decision.

The plaintiff's recognition as a conscientious objector could be considered an indicator of the seriousness of his pacifist conviction in this case. However, it did not automatically establish a labor law right to refuse performance. Article 4, Paragraph 3 of the Basic Law specifically protects against compulsory military service with weapons. Driving a tram with Bundeswehr advertising is legally and factually clearly distinguishable from this.

Therefore, the decisive factor was not the previous recognition as a conscientious objector, but the concrete question of how intensely the activity in dispute affected the plaintiff's freedom of conscience.

IV. Impact of Fundamental Rights in Private Employment Relationships

Fundamental rights generally do not apply directly between private employment contract parties in the same way as between citizens and the state. However, they do have indirect third-party effects.

This means that the fundamental rights positions of the contracting parties must be taken into account when interpreting and applying labor law provisions. In the present case, this inclusion occurred particularly via Section 106 GewO and the standard of equitable discretion.

On the employee side, Article 4, Paragraph 1 of the Basic Law had to be considered. On the employer side, the freedom of profession and the freedom of entrepreneurial activity from Article 12, Paragraph 1 of the Basic Law were particularly relevant. These include the organization of the business, the design of work processes, and decisions regarding the deployment of personnel and operating resources.

None of these legal positions enjoys abstract precedence. Rather, what is required is practical concordance, i.e., a reconciliation of conflicting fundamental rights positions that is as gentle as possible.

V. The Employee's Position

From the plaintiff's perspective, it could be argued that by driving the tram, he was not merely providing a neutral transport service. The tram also served as a mobile advertising medium. By driving the vehicle through public spaces, he objectively participated in the dissemination of the advertising message.

From this perspective, the conflict of conscience was not limited to a mere rejection of the vehicle's external design. The plaintiff understood his activity as personal participation in the external representation of an institution whose military mission he rejected out of pacifist conviction.

Another point in favor of the employee's position was that an alternative operational arrangement seemed fundamentally conceivable. In a larger transport company with numerous vehicles and drivers, the permanent non-assignment of a single vehicle could potentially be managed organizationally.

Furthermore, the small number of actual deployments should not be solely attributed to the disadvantage of the plaintiff. Especially if the conflict occurs only very rarely, this could also suggest that an exception would be possible without serious impairment of operations.

The employee could therefore assert that the employer, within the scope of equitable discretion, was obliged to examine a more lenient deployment option.

VI. The Employer's Position

Conversely, it had to be considered that the plaintiff was employed as a tram driver and was not supposed to take on an unrelated or contractually inappropriate task by being assigned the vehicle.

The advertising message was attributable to the employer or the advertising client, not the driver. The plaintiff did not have to personally identify with the advertisement nor make an advertising statement himself. For an objective third party, it was readily apparent that the driver was merely performing his professional duties.

The substantive distance to actual military activity was also considerable. The plaintiff was not required to perform military service or transport weapons, recruit soldiers, or directly participate in any military action. His involvement in the advertising measure was limited to driving a vehicle regularly used in public local transport.

On the employer's side, the interest in flexible and reliable service planning also had to be considered. Individual deployment restrictions can necessitate additional control, coordination, and rescheduling measures. The employer must, in particular, be able to ensure that vehicles can be staffed without disproportionate effort in the event of breakdowns, delays, or short-term personnel changes.

Furthermore, there is the potential for a precedent effect. If employees could reject individual vehicles due to political, religious, economic, or social advertising on them, this could significantly complicate operational deployment planning. While such an abstract fear must not replace an individual case assessment, it can be considered within the framework of balancing operational interests.

VII. The Labor Court's Decision

The Munich Labor Court gave precedence to the employer's position.

According to the court's assessment, the plaintiff's freedom of conscience was indeed affected by driving the tram. However, the impairment was of comparatively low intensity. The plaintiff was not obliged to make a political or military statement of his own. Nor did he have to personally adopt the advertising message.

The court further considered that the plaintiff had only been assigned to the vehicle in question once over a longer period. Thus, the actual burden occurred only rarely.

In contrast, according to the court, a permanent exemption would have caused continuous organizational review and planning efforts on the employer's side. As a result, the operational interests therefore outweighed.

The instruction to also drive the tram bearing Bundeswehr advertising was, in the opinion of the Labor Court, in accordance with equitable discretion and was binding for the plaintiff.

VIII. Legal Assessment

1. No general right to refuse performance under Article 4 of the Basic Law

The decision correctly clarifies that a conflict of conscience does not automatically result in a labor-law right to refuse performance.

Based on the employment contract, the employee is generally obliged to perform the agreed work. An appeal to Article 4 of the Basic Law can only limit this duty if the specific instruction leads to a sufficiently significant impairment of conscience and the opposing employer interests do not outweigh it.

Therefore, the decisive factor is not solely the subjective intensity of the conviction. An objectively understandable connection must also exist between the activity owed and the event rejected by the employee for reasons of conscience.

In the present case, this connection did exist, but it was only indirect in nature.

2. Indirect involvement as a decisive distinguishing criterion

The question of how directly the employee is involved in the rejected action is of considerable importance.

The closer the activity is to the process rejected for reasons of conscience, the stronger the employee's position. A direct contribution to a military, medical, religious, or political action can establish a much more intense involvement of fundamental rights than merely technical, logistical, or indirect participation.

The plaintiff did not transport military goods or perform recruitment tasks. He drove a public transport vehicle whose exterior had been leased for advertising purposes. The advertising effect thus occurred as a side effect of his actual contractual activity.

This distance justifies valuing the intensity of the interference as lower.

3. The organizational reasonableness could have been examined in more detail

However, it is questionable to what extent the organizational effort claimed by the employer was actually determined.

The mere assertion of additional planning effort is not sufficient in itself. A concrete examination is generally required to determine whether an alternative deployment arrangement would be technically, personally, and economically reasonable.

The following circumstances would be particularly relevant:

• Size of the vehicle and personnel fleet,
• Frequency of use of the advertising vehicle,
• Technical capabilities of the duty roster software,
• Presence of comparable deployment restrictions,
• Probability of short-term vehicle changes,
• Concrete additional costs or operational disruptions.

The rarity of the conflict can be assessed ambivalently from a legal perspective. On the one hand, it reduces the burden on the employee. On the other hand, it could precisely increase the organizational manageability of an exception.

A legally particularly sound decision should therefore not only abstractly refer to daily control effort, but rather specifically compare this effort with the effects on freedom of conscience.

4. No equation with personal advertising

However, the assumption that the advertising message is not personally attributed to the driver is convincing.

An employee who operates an operating resource bearing advertising generally does not make a statement of their own. They do not adopt the content of the advertising merely by performing their main contractual duty.

This distinguishes the case, for example, from an instruction where an employee would have to actively advertise themselves, spread a political message, or personally promote an institution. In such a constellation, the infringement of fundamental rights would regularly be assessed as significantly higher.

IX. Consequences for Labor Law Practice

The decision must not be misunderstood as a general precedence of the right to issue instructions over freedom of conscience. Rather, it confirms the necessity of a case-by-case weighing.

Employers should not prematurely treat a substantiated conflict of conscience as refusal to work. Before labor law sanctions, it must be examined:

• whether a serious conflict of conscience exists,
• how directly the work performance is connected to the rejected activity,
• whether alternative deployment possibilities exist,
• what organizational effort would be associated with an exception, and
• whether a milder measure is available.

Conversely, employees should consider that the unauthorized refusal of an assigned task carries significant risks. If the instruction proves to be lawful after the balancing of interests, persistent non-compliance can generally justify a warning, a formal warning, or, in repeated cases, even termination.

A conflict of conscience should therefore be disclosed to the employer early, comprehensibly, and specifically. A blanket appeal to personal convictions is generally not sufficient.

X. Concluding Legal Classification

The judgment of the Munich Labor Court is within the framework of recognized labor law principles.

The plaintiff's freedom of conscience was undoubtedly affected. However, it was not impaired in its core area. The plaintiff neither had to perform military service nor personally advertise for the Bundeswehr. His involvement in the dissemination of the advertising message was merely indirect and arose as a collateral effect of his regular activity as a tram driver.

Conversely, the employer was entitled to assert its interest in uniform, flexible, and disruption-free vehicle and personnel deployment planning. Taking into account the low frequency of actual conflicts and the lack of personal attribution of the advertising, it is legally justifiable to consider the instruction as binding.

Nevertheless, the case shows that conflicts of conscience in employment relationships must not be resolved according to schematic priority rules. Neither does freedom of conscience end at the factory gate, nor does it automatically suspend the contractual obligation to perform work.

Decisive factors remain the intensity of the conflict of conscience, the proximity of the activity to the rejected event, the reasonableness of alternative employment, and the extent of operational disadvantages.

The core statement of the decision is therefore:

"Article 4 of the German Basic Law obliges the employer to include a serious conflict of conscience in their discretionary decision. However, a right to refuse performance only arises when the impairment of conscience in the specific individual case outweighs the legitimate operational interest in carrying out the contractually owed work."

In the case of the Munich tram driver, the Labour Court did not consider these conditions to be met. The duty to operate the vehicle therefore remained.