Components can have two legal identities
A component is not simply an item too small to count as a product. Article 4 of Directive (EU) 2024/2853 recognises products incorporated into or interconnected with other products. Its component definition covers tangible or intangible items, raw materials and related services integrated into or interconnected with a product. The component's relationship to the larger product therefore matters alongside its own characteristics.
The product definition and the component definition serve related purposes. A battery sold for installation can be a product when supplied and a component of a finished device when integrated. The finished device may also be a product. Calling the battery a component does not exclude it from examination, and calling the finished device a product does not erase the role of its internal parts.
Map the integration relationship
Identify the larger product and the alleged component separately. Record what each does, how they connect and who specified the arrangement. Integration can be physical, such as a motor fitted inside a machine, or digital, such as software communicating with an electronic controller. A procurement category such as accessory or subcontracted service does not conclusively answer the statutory classification question.
A useful factual description identifies a function rather than relying entirely on labels. Explain whether the part measures temperature, switches power, calculates a dose or supplies instructions to another unit. Preserve interface specifications and any assumptions about the conditions under which the component would operate. Integration can create risks that are not apparent from examining either item alone, so the wider configuration matters.
Tangible items are only one category
Traditional components include fasteners, seals, circuit boards and batteries. Article 4 also expressly includes intangible items within its component definition. Software can therefore be relevant without being embodied in a separately replaceable physical module. The discussion of intangible components as products explains why code, content and digital services need careful differentiation rather than a single digital label.
Raw materials can also be components when incorporated into a product. A batch of polymer used in a protective casing may require material identification and processing records, rather than a serial number for each finished piece. The lack of an individual retail package does not settle classification. Record the relationship between the supplied batch and the affected finished goods as accurately as the available evidence permits.
Classification and responsibility remain separate
The component and final manufacturer responsibility analysis explains Article 8 conditions governing the liability of a defective component's manufacturer where the component was integrated or interconnected within the relevant manufacturer's control and caused the product to be defective. The final product manufacturer's potential responsibility remains relevant too. These rules do not create a presumption that every supplier in a bill of materials is responsible for an incident.
Manufacturer control has its own Article 4 definition, including authorised or consented integration and certain abilities to supply software updates. A purchasing relationship alone does not describe the whole inquiry. Preserve approvals, technical change requests and integration tests that help establish what was actually authorised. Where third parties replaced or modified a component, record those later events separately instead of silently attributing them to the original assembly.
Examine the alleged defect at the correct level
A component may work according to its own specification while producing an unsafe result in the assembled product. Conversely, a sound design can contain a manufacturing fault in one supplied unit. Article 7 requires consideration of all circumstances, including technical characteristics and reasonably foreseeable effects of other products expected to be used together. It does not make a component specification a complete legal answer.
Describe the alleged mechanism precisely. A claim that a safety interlock was incompatible with a controller differs from a claim that its contacts were contaminated during manufacture. Each points towards different records and possible tests. Record competing explanations and the evidential basis for rejecting them. The location of visible damage is not necessarily the location of the initiating failure.
Component exemptions need their own assessment
Article 11 includes a specific exemption where a component manufacturer proves that the finished product's defectiveness is attributable to the design of that product or to instructions given by its manufacturer. This is not an automatic supplier immunity. It requires examination of the actual conditions and the evidence supporting the claimed explanation. Commercial contracts can help describe instructions without deciding the injured person's statutory rights.
The relevant loss also needs separate classification. Article 6 excludes specified damage to a product caused by a defective component integrated or interconnected by its manufacturer or within its control. The distinction can matter even where personal injury or damage to other property raises a different question. Separating these losses prevents a component analysis from becoming an unsupported estimate of compensation.
Check dates before applying the new rules
The new Directive's corrected scope covers products placed on the market or put into service after 8 December 2026. A component's supply history, the finished product's market history and later integration events should be recorded distinctly. Applying that chronology to a particular claim requires examination of the relevant national law. The accident date and the date a part was discovered in stock cannot by themselves choose the legal framework.
Records that help the review
Use the following as a practical starting point. Select and preserve records appropriate to the product, incident and applicable procedure.
- Component identifiers and revision numbers
- Assembly and integration specifications
- Records showing approval of integration or interconnection
Independent educational information at EU Directive level. National implementing law and procedure require separate review.
Primary sources and legal scope
This page explains the EU Directive framework. Check national implementing law, the corrected temporal scope and relevant procedure before applying it to a case.
- Directive (EU) 2024/2853, consolidated text: Articles 2, 4, 6, 7, 8, 10, 11 ↗
- Official Journal corrigendum, 7 May 2026: Article 2(1) ↗
Source register: corrected scope verified 16 October 2026. Article references identify the legal basis. No qualified legal review or national implementation status is claimed.