'Wet Hire' Rental and Contractor Liability: Cassation Court Ruling 26595/2025

Workplace safety is a fundamental pillar of our legal system, an indispensable value that imposes precise protective obligations on employers and contractors. However, the complexity of modern work dynamics, such as the rental of machinery with an operator (so-called 'wet hire' rental), can sometimes generate uncertainties regarding the allocation of responsibilities in the event of an accident. The Court of Cassation, Section 4 Criminal, has intervened on this delicate issue with ruling no. 26595 of 05/06/2025 (filed on 21/07/2025), offering a fundamental clarification that deserves the utmost attention from all companies.

The Case: A Tragic Accident and the Question of Liability

The case examined by the Supreme Court originates from a fatal accident that occurred to an operator of a vehicle rented on a 'wet hire' basis for pruning some trees. During the operations, the worker was struck by a falling branch within a construction site area that, according to the safety organizational plan and the risk assessment document (DVR), should have been closed to access. The contractor, on whose site the event occurred, was held liable for the damages. The Court of Appeal of Rome had already confirmed the contractor's liability, and the appeal to the Court of Cassation aimed to contest this finding.

The crucial point of the dispute concerned the extent of the contractor's safety obligations towards a worker who, although operating on their site, was formally an employee of the company that had supplied the machinery on a 'wet hire' basis. The question therefore arose as to whether the contractor should also be liable for the safety of what jurisprudence defines as an 'external operator,' i.e., a worker not directly employed by them but integrated into their operational context.

The Cassation Court's Ruling: Protective Obligations Extended to the 'External' Operator

In matters of workplace accident prevention, the contractor, in the case of 'wet hire' with the provision of machinery and a worker with specific skills for its use, is liable for damages resulting from non-compliance with accident prevention regulations concerning the execution of works, even with regard to the 'external' operator assigned to the rented machinery, towards whom the same protective obligations as those owed to employees apply.

This ruling is of extremely significant scope. The Court of Cassation, with ruling 26595/2025, reaffirms and strengthens a principle that was already established but often subject to divergent interpretations: the contractor has precise warranty duties also towards workers not directly hired, but who operate within their construction site or within the scope of their production activity. Specifically in the case of 'wet hire,' where the machinery is supplied with a specialized operator, the contractor cannot evade their safety responsibilities.

This means that, although the operator is formally an employee of the rental company, the contractor who hosts them on their work site is obliged to ensure the same safety conditions as they would provide to their own employees. This obligation arises from the position of guarantee that the contractor assumes by virtue of their control and direction over the work environment and the methods of carrying out the activities.

Legal and Jurisprudential Basis

The Cassation Court's decision is based on a solid regulatory framework, primarily Legislative Decree 81/2008, the Consolidated Text on Workplace Safety. In particular, articles such as:

• **Article 26 (Obligations related to contracts of appalto, works, or supply)**: This article establishes that, in the case of awarding works, services, and supplies, the client employer must verify the technical-professional suitability of the contracting companies or self-employed workers, promote cooperation and coordination of activities, and prepare the Unified Risk Assessment Document for Interference (DUVRI).
• **Article 19 (Obligations of the supervisor)** and **Article 20 (Obligations of workers)**: These articles, while referring to different figures, emphasize everyone's responsibility in contributing to safety, but do not exempt the contractor from their primary duties.

Case law from the Court of Cassation has long clarified that the contractor, as the holder of the construction site or workplace, has the duty to implement measures suitable for preventing accidents, regardless of the direct employment relationship with the injured worker. This duty is strengthened when the contractor has effective control over the activities and the context in which the work is performed, as in the case of 'wet hire.' The omission of essential preventive measures, such as the closure of a high-risk area, as occurred in this case, constitutes a clear violation of these obligations.

Implications and Advice for Companies

Ruling 26595/2025 serves as a warning to all companies operating in the contracting sector that use 'wet hire' machinery rentals. The implications are clear:

• **Thorough Verification**: The contractor must conduct a rigorous verification of the technical-professional suitability of the rental company, not limiting themselves to formal aspects.
• **Coordination and Information**: Constant coordination between the contractor and the rental company is essential, with an exchange of information on specific risks and preventive measures to be adopted.
• **Updating Safety Documents**: The contractor's DVR and POS must be updated and take into account the presence of external operators and the specificities of the work carried out with rented machinery.
• **Control and Supervision**: The contractor has the duty to supervise the effective application of safety regulations and planned procedures, intervening promptly in case of violations or dangerous situations.

This ruling, which is part of a consolidated jurisprudential trend (see also previous rulings such as No. 1777 of 2019 or No. 32178 of 2020), once again emphasizes the importance of proactive and responsible management of workplace safety, extending the scope of protection to all those who, in various capacities, contribute to the completion of a work or service.

Conclusions

The Cassation Court ruling no. 26595/2025 reinforces the principle that responsibility for workplace safety cannot be fragmented or evaded in the presence of complex contractual relationships such as 'wet hire.' The contractor, as the guarantor of safety on their construction site, has the non-derogable duty to protect all workers operating there, including 'external operators.' This decision is fundamental for promoting a more inclusive safety culture and for preventing tragedies like the one that originated the case, reiterating that the life and physical integrity of workers are values that no economic or contractual logic can subordinate. For companies, this means investing even more in training, planning, and control, ensuring that every work environment is a safe place for everyone.