Nachweisung

Nachweisung is a German noun derived from the verb nachweisen, meaning to prove or establish. In legal and administrative language it denotes the material or formal documentation that supports a claim, assertion, or eligibility. It can refer to the act of proving (die Nachweisung) as well as the documents presented as proof (ein Nachweis, mehrere Nachweise). In practice, the term is often used interchangeably with Beleg or Beweismittel, though Beleg is more general, while Nachweis emphasizes substantiation.

Common uses: Nachweis der Identität, Nachweis der Wohnadresse, Nachweis der Einkünfte, Nachweis der Qualifikation. In immigration, taxation, social security, and procurement processes, individuals are required to provide appropriate Nachweise to verify facts such as identity, residence, income, or qualifications. The documents serving as Nachweise include passports, identity cards, birth certificates, utility bills, salary statements, certificates, or tax assessments.

In civil law and administrative procedures, the term appears in phrases like “Nachweis erbringen” (to furnish proof) or “Nachweisführung” (presentation of evidence). In science, Nachweis can also mean detection or demonstration of a phenomenon, i.e., the experimental Nachweis of a hypothesis, though in scientific writing the term is usually translated as proof or demonstration rather than a formal document.

Translations: in English, Nachweisung can be rendered as proof, documentation, or evidence, depending on context.