EN
Elements of composite things, which have an independent role, are not separate things and constitute component parts of such things (according with 47 § 2 of the Civil Code). Of no small importance for the issue of the constituent part of a thing is Article 47 of the Civil Code, in which the legislator defined this term and defined the consequences of the qualification of an object as a constituent part of a thing. Legislator in special provisions specifies this term - either broadening it (e.g. in Article 50 of the Civil Code) or narrowing it (e.g. Article 49 of the Civil Code). The object of this publication is to determine the scope of the term of component part contained in Article 47 of the Civil Code. The considerations contained in the article include, inter alia, the issue of the material nature of a component part. This issue, though relevant for civil law transactions, seems to have not been so far the subject of interest either in literature or jurisprudence.