ADIF (Spanish pronunciation: [aˈðif], an acronym of Administrador de Infraestructuras Ferroviarias) is a Spanish state-owned railway infrastructure manager under the responsibility of the Ministry of Transport, Mobility and Urban Agenda, charged with the management of most of Spain's railway infrastructure, that is the track, signaling and stations. It was formed in 2005 in response to European Union requirements to separate the natural monopoly of infrastructure management from the competitive operations of running train services. It is the legal successor of Renfe, Feve (Ferrocarriles de Vía Estrecha), and GIF (Gestor de Infraestructuras Ferroviarias).
|Type||State-owned public company|
|Industry||Construction and Management of Rail Infrastructure Telecommunications|
|Founded||1 January 2005|
|Isabel Pardo de Vera, Chairwoman|
|Products||Public rail transport|
|Revenue||€2,948.7 million (2010)|
|gross operating profit: €399.7 million (2010)|
Number of employees
ADIF is the result of Railway Sector Act, which arises from the transposition of European Directives. It requires that large European national railway independently manage the infrastructure and trains on it. The ultimate goal was to allow any other rail operator operating on the network to do so on equal terms with the operator, in this case, Renfe, promoting free competition. The Renfe division became effective on 1 January 2005 between the two companies:
- Renfe (newly created entity): Owner of trains and responsible for its circulation, which works in competition with other railway companies
- ADIF (Legal successor of Renfe): Owner of infrastructure and responsible for its management, which provides its services to any rail operator who requests
A similar operation was conducted on 31 December 2012 with Feve, a company that managed the narrow gauge railways. ADIF took charge of all narrow gauge infrastructures not transferred to the autonomous governments.
ADIF is responsible for administrating rail infrastructures (tracks, stations, freight terminals, etc.), managing rail traffic distributing capacity to rail operators, and the collection of fees for infrastructure, station and freight terminal use 
|April 1992||Madrid–Seville HSL|
|October 2003||Madrid–Zaragoza–Lleida section (Madrid – Barcelona – French Border HSL)|
|April 2005||Zaragoza–Huesca section (Madrid – Huesca HSL)|
|November 2005||Madrid–Toledo HSL|
|December 2006||Lleida–Camp de Tarragona section (Madrid – Barcelona – French Border HSL)|
|December 2007||Madrid–Valladolid section (Madrid – Leon HSL)|
|December 2007||Antequera–Malaga section (Madrid – Malaga HSL)|
|February 2008||Camp de Tarragona–Barcelona section (Madrid – Barcelona – French Border HSL)|
|December 2010||Figueres–Perthus Tunnel (managed by TP Ferro) and Nus Mollet Junction-Girona sections (Madrid-Barcelona-French Border HSL)|
|December 2010||Madrid–Cuenca–Albacete–Valencia section (Madrid – Castile-La Mancha – Valencia Region – Murcia Region HSL)|
|December 2011||Ourense–Santiago de Compostela–A Coruña section (Madrid – Galicia and Atlantic Corridor HSL)|
|January 2013||Barcelona–Figueres Section (Madrid – Barcelona – French Border HSL)|
|June 2013||Albacete–Alicante section (Madrid – Castile-La Mancha – Valencia Region – Murcia Region HSL)|
|April 2015||Santiago de Compostela–Vigo section (Atlantic Corridor HSL)|
|September 2015||Valladolid–Venta de Baños–Leon section (Madrid – Leon HSL)|
|January 2018||Valencia–Castellón section (Madrid – Castile-La Mancha – Valencia Region – Murcia Region HSL)|
|December 2020/2021||Olmedo – Zamora – Ourense sections (Madrid – Galicia Region HSL); approximate length: 363 km|
High-Speed Rail Lines under construction in SpainEdit
- León - Asturias (Pajares New Line). Length: 49.7 km
- Venta de Baños - Burgos - Vitoria. Length: 200.4 km
- Vitoria - Bilbao - San Sebastián. Length: 176.5 km (including accesses to cities)
- Madrid – Castile-La Mancha – Valencia Region – Murcia Region. Length: 955 km (603 in service and 352 under construction)
- Extension of Madrid Southern Access-Torrejón de Velasco
- High-speed Mediterranean Corridor. Murcia-Almería section. Length: 184.4 km (not including the Murcia Railway Network)
- Antequera-Granada. Length: 125.7 km
- Madrid - Extremadura - Portuguese Border. Estimated length: 450 km
- Madrid: Atocha-Chamartín connection. Length: 8.2 km 
|Net business turnover||1,807.0||1,963.0||1,999.8||1.87%|
|Gross operating profit (EBITDA)||204.7||278.0||399.7||43.78%|
|Salary and Compensation to Employees||653.0||674.5||710.5||5.34%|
|Total economic value distributed||2,542.4||2,546.2||2,573.5||1.07%|
- "Órganos de Gobierno" (in Spanish). Adif. Archived from the original on 5 December 2018. Retrieved 4 December 2018.
- País, El (28 June 2018). "Fomento nombra a Isaías Táboas presidente de Renfe y a Isabel Pardo, de ADIF". El País (in Spanish). Archived from the original on 5 December 2018. Retrieved 4 December 2018.
- "Executive Summary page 22/23" (PDF).
- Conocer Adif, Adif, archived from the original on 19 June 2010, retrieved 25 June 2010. (in Spanish)
- "Learn about Adif". Archived from the original on 26 October 2013. Retrieved 28 October 2013.
- Chris King (20 December 2021). "AVE links Madrid with Galicia after 20 years". www.euroweeklynews.com. Retrieved 26 December 2021.
- "Adif - High speed lines". www.adif.es. Archived from the original on 4 January 2019. Retrieved 7 January 2019.
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