# CS-25 > certification procedure **Wikidata**: [Q1024314](https://www.wikidata.org/wiki/Q1024314) **Wikipedia**: [English](https://en.wikipedia.org/wiki/EASA_CS-25) **Source**: https://4ort.xyz/entity/cs-25 ## Summary CS-25 is a certification procedure document published by the European Union Aviation Safety Agency (EASA). It is formally classified as an instance of a "document" and serves as a key part of EASA's certification specifications for aviation. ## Key Facts - **Definition:** CS-25 is a certification procedure. - **Publisher/Editor:** European Union Aviation Safety Agency (EASA). - **Classification:** It is an instance of the class "document". - **Primary Reference URL:** `http://www.easa.europa.eu/document-library/certification-specifications#CS-25`. - **Reference Date:** The described URL was active as of September 5, 2016. - **Language of Reference:** The primary reference URL is in English. - **Wikipedia Presence:** The official Wikipedia title is "EASA CS-25". - **Wikipedia Languages:** It has Wikipedia entries in German (de), English (en), and Spanish (es). - **Sitelink Count:** It is linked from 3 Wikipedia language editions. - **Wikidata Description:** Its Wikidata description is "certification procedure". - **Google Knowledge Graph ID:** `/g/122tnwc7`. ## FAQs **What is CS-25?** CS-25 is a specific certification procedure document. It is formally an instance of a "document" and defines the airworthiness standards for large aeroplanes within the European Union's regulatory framework. **Who is responsible for CS-25?** The European Union Aviation Safety Agency (EASA) is the editor and publishing authority for CS-25. It is part of their official certification specifications library. **In which languages is information about CS-25 officially available?** The primary reference document is in English. It also has dedicated Wikipedia articles in German, English, and Spanish, indicating official or significant community documentation in these languages. **When was the current online reference for CS-25 established?** The specific URL for the certification specifications page containing CS-25 was documented as active on September 5, 2016. **How is CS-25 categorized in knowledge bases?** In structured data, CS-25 is categorized as an "instance of" a document and is described by its function as a "certification procedure". It is linked to the European Union Aviation Safety Agency as its editor. ## Why It Matters CS-25 matters because it codifies the mandatory safety and performance standards that manufacturers must meet to certify large civil aeroplanes for operation in Europe. As a formal "document" within EASA's regulatory framework, it translates complex engineering and safety requirements into legally binding criteria. Its existence ensures a harmonized, high level of safety across the European aviation market, facilitating both manufacturer compliance and public trust. The document's structured nature and official status make it a cornerstone reference for aerospace engineers, legal teams, and regulatory bodies involved in type certification and continued airworthiness. ## Notable For * **Regulatory Authority:** It is a core certification specification issued by the European Union Aviation Safety Agency (EASA), a major global aviation regulator. * **Specific Scope:** It is notably for "large aeroplanes," distinguishing it from other CS specifications for different aircraft categories (e.g., CS-23 for small aeroplanes). * **Structured Information:** As an instance of a "document," it exemplifies a formal, structured information resource designed for preservation and precise reference in a legal and technical context. * **Multilingual Official Presence:** It has recognized entries in at least three major European languages (German, English, Spanish) on Wikipedia, reflecting its international operational relevance. * **Definitive Online Reference:** It has a persistent, qualifier-dated URL on the official EASA website, serving as the authoritative digital source. ## Body ### Definition and Ontological Classification CS-25 is defined by its function: it is a **certification procedure**. In the context of structured knowledge, it is explicitly classified as an **instance of** the class **"document"**. This means it is a "form for the preservation of structured and identified information," originating from the act of writing. As a document, it possesses the inherent characteristics of its class, including **document-type information**, **communications media**, and a **heading**. Its primary purpose is to serve as a permanent, identifiable record of the airworthiness standards set by its issuing body. ### Publishing Authority and Governance The sole **editor** and responsible authority for CS-25 is the **European Union Aviation Safety Agency (EASA)**. EASA is the regulatory body for aviation safety within the European Union. CS-25 is a component of their **certification specifications** library, which is the formal repository for all such procedural and technical documents. The document's authority stems directly from EASA's mandate to establish and enforce common safety standards across member states. ### Digital Presence and Accessibility The definitive, citable online location for CS-25 is within the EASA document library at the URL `http://www.easa.europa.eu/document-library/certification-specifications#CS-25`. This URL was verified as containing the described resource on **September 5, 2016**. The resource is presented in **English**, which is the working language of the agency. Its significance is further demonstrated by its dedicated Wikipedia articles under the title **"EASA CS-25"** across three language editions: **German (de)**, **English (en)**, and **Spanish (es)**, contributing to a total **sitelink count of 3**. ### Semantic Web and Knowledge Graph Integration CS-25 is integrated into global knowledge graphs and structured databases. Its **Wikidata description** is succinctly "certification procedure." It is assigned a unique identifier in the **Google Knowledge Graph**: **/g/122tnwc7**. These integrations allow the document to be linked as a distinct entity within the broader ecosystem of aviation regulations, standards, and organizational data, connecting it to EASA and the concept of airworthiness certification. ### Context within Aviation Certification While the source material does not detail the technical content of CS-25, its identity as a "certification procedure" places it within the critical regulatory pathway for aircraft. Such procedures define the mandatory requirements for design, construction, and performance that an applicant must demonstrate compliance with to receive a type certificate for a large aeroplane. This makes CS-25 a fundamental, referenced document for any entity seeking to introduce a new large passenger or cargo aircraft into the European market. Its structured, document-based format ensures clarity, consistency, and legal defensibility in the certification process.