ARL may refer to:

Military

* US Navy hull classification symbol 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 * ARL 44, a WWII French tank

Organizations

* Aero Research Limited, a UK adhesives company * Air Resources Laboratory of US NOAA * Association of Research Libraries, US and Canada * Pennsylvania State University Applied Research Laboratory, 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

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 (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, 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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