ARL may refer to:

Military

* A US Navy hull classification symbol: Landing craft repair ship (ARL) *

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

, UK *

United States Army Research Laboratory The U.S. Army Combat Capabilities Development Command Army Research Laboratory (DEVCOM ARL) is the foundational research laboratory for the United States Army under the United States Army Futures Command (AFC). DEVCOM ARL conducts intramural an ...

ARL 44 The ARL 44 was a French heavy tank and tank destroyer, 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 ...

, a WWII French tank

Organizations

* Aero Research Limited, a UK adhesives company *

Air Resources Laboratory __NOTOC__ The Air Resources Laboratory (ARL) is an applied research 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 States ...

of US NOAA *

Association of Research Libraries The Association of Research Libraries (ARL) is a nonprofit organization of 125 research library at comprehensive, research institutions in Canada and the United States. ARL member libraries make up a large portion of the academic and research li ...

, 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 United ...

, 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 animal welfare organization founded in Pittsburgh, Penns ...

, 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. Founded in 1909, the ARL has played a pivotal role in the development and promotion of rugby league in Auckland and beyond. ...

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

Transportation

Airport Rail Link (Bangkok) The Airport Rail Link (ARL) () is an airport rail link line in Bangkok Metropolitan Region connecting Suvarnabhumi Airport to the city center. The commuter rail line starts at the underground platforms inside Suvarnabhumi station, before ascendi ...

, 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 ...

, 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 l ...

(IATA airport code), Burkina Faso *

Arriva Rail London Arriva Rail London is a train operating company owned by Arriva UK Trains that operates the London Overground concession on behalf of Transport for London. History In April 2015, Transport for London placed a notice in the '' Official Journa ...

, operators of London Overground rail services

Computing

Authority revocation list In cryptography, a certificate revocation list (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". Publicly trusted ...

, in cryptosystems

Other

Argyll Argyll (; archaically Argyle; , ), sometimes called Argyllshire, is a Shires of Scotland, historic county and registration county of western Scotland. The county ceased to be used for local government purposes in 1975 and most of the area ...

, 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 Colin R Chapman in the late 1970s ...

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