ARL may refer to:

Military

* US Navy

hull classification symbol The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration (NOAA) use a hull classification symbol (sometimes called hull code or hull number) to identify their ships by type and by ind ...

for repair ship *

Admiralty Research Laboratory The Admiralty Research Laboratory (ARL) was a research laboratory that supported the work of the UK Admiralty in Teddington, London, England from 1921 to 1977. History During the First World War, the Anti-Submarine Division of the Admiralty ha ...

, UK *

United States Army Research Laboratory The U.S. Army Combat Capabilities Development Command Army Research Laboratory (DEVCOM ARL) is the U.S. Army's foundational research laboratory. ARL is headquartered at the Adelphi Laboratory Center (ALC) in Adelphi, Maryland. Its largest singl ...

ARL 44 The ARL 44 was a French heavy tank, the development of which started just before the end of the Second World War. Only sixty of these tanks were ever completed, from 1949 onwards. The type proved to be unsatisfactory and only entered limited ser ...

, a WWII French tank

Organizations

Aero Research Limited Aero Research Limited (ARL) was a British company that pioneered several new adhesives, intended initially for the aeronautical industry. Formed in 1934 by Norman de Bruyne at Duxford, Cambridgeshire from an earlier company of his, the Cambridges ...

, a UK adhesives company *

Air Resources Laboratory __NOTOC__ The Air Resources Laboratory (ARL) is an air quality and climate laboratory in the Office of Oceanic and Atmospheric Research (OAR) which is an operating unit within the National Oceanic and Atmospheric Administration (NOAA) in the United ...

of US NOAA *

Association of Research Libraries The Association of Research Libraries (ARL) is a nonprofit organization of 127 research libraries at comprehensive, research institutions in Canada and the United States. ARL member libraries make up a large portion of the academic and research l ...

, US and Canada *

Pennsylvania State University Applied Research Laboratory The Pennsylvania State University Applied Research Laboratory (short: Penn State ARL or simply ARL), is a specialized research unit dedicated to interdisciplinary scientific research at the Penn State, University Park campus. The ARL is a DoD d ...

, US *

Animal Rescue League of Western Pennsylvania Humane Animal Rescue of Pittsburgh (HARP), formerly known as the Animal Rescue League of Western Pennsylvania, known commonly as Animal Rescue League Shelter & Wildlife Center (ARL), is an rescue group, animal welfare organization founded in Pitt ...

, US

Sports

Albanian Rugby League Albanian Rugby League (ARL) represents Albania in international rugby league tournaments, as well as organizes domestic competitions, and undertakes development projects. Rugby league is a new sport in Albania, which has been officially registered ...

Auckland Rugby League The Auckland Rugby League (ARL) is the governing body for the sport of rugby league in the Auckland Region of New Zealand. It is responsible for rugby league in the region, including both club and school rugby league. It began in 1910 when the fi ...

Australian Rugby League The Australian Rugby League Commission (ARL), formerly the Australian Rugby Football League known as the Australian Rugby League is an Australian rugby league football competition operator. It was founded in 1986 as the Australian Rugby Footbal ...

Transportation

Airport Rail Link (Bangkok) The Airport Rail Link (ARL) ( th, รถไฟฟ้าแอร์พอร์ต เรล ลิงก์) is an express and commuter rail line in Bangkok, Thailand. The line provides an airport rail link from Suvarnabhumi Airport, via Mak ...

, Thailand *

Autolinee Regionali Luganesi Autolinee Regionali Luganesi (ARL) is a public transport operator in the region around the Swiss city of Lugano. It operates bus services from Lugano to various outer-suburban communities. There is some overlap in terms of places served with the ...

, Swiss bus company *

Arlesey railway station Arlesey railway station serves the town of Arlesey in Bedfordshire, England. It is from on the East Coast Main Line. Arlesey is managed by Great Northern, but from December 2019 all services to the station have been operated by Thameslink, ...

(National Rail code), UK *

Armour Refrigerator Line The Armour Refrigerator Line (ARL, one of the Armour Car Lines) was a private refrigerator car line established in 1883 by Chicago meat packer Philip Armour, the founder of Armour and Company. To get his products to market, Armour followed the lea ...

, a refrigerator car line *

Arly Airport Arly Airport is a public use airport located near Arli National Park or Arly, Tapoa Province, Burkina Faso. While the runway outline is clearly visible, it appears overgrown with vegetation and may be unusable. However, the airfield is still list ...

(IATA airport code), Burkina Faso

Computing

Authority revocation list In cryptography, a certificate revocation list (or CRL) is "a list of digital certificates that have been revoked by the issuing certificate authority (CA) before their scheduled expiration date and should no longer be trusted". CRLs are no longer ...

, in cryptosystems

Other

Argyll Argyll (; archaically Argyle, in modern Gaelic, ), sometimes called Argyllshire, is a historic county and registration county of western Scotland. Argyll is of ancient origin, and corresponds to most of the part of the ancient kingdom of ...

, historic county in Scotland,

Chapman code Chapman codes are a set of 3-letter codes used in genealogy to identify the administrative divisions in the United Kingdom, Ireland, the Isle of Man and the Channel Islands. Use They were created by the historian, Dr. Colin R Chapman, in the late ...

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