Group 4 may refer to:
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Group 4 element
Group 4 is the second group of transition metals in the periodic table. It contains only the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). The group is also called the titanium group or titanium family after ...
, chemical element classification
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Group 4 (motorsport)
Group 4 referred to regulations for sportscars and grand touring (GT) cars used in racing and rallying, as regulated by the FIA. The group was introduced in 1954 and was replaced by Group B for the 1982 season.
Production requirements
Pri ...
, classification for cars in auto racing and rallying
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G4S
G4S is a British multinational private security company headquartered in London, England. The company was set up in July 2004 when London-based Securicor amalgamated with Danish firm Group 4 Falck. The company offers a range of services, in ...
, formerly Group 4 Securicor, a prominent British security company
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IB Group 4 subjects
The Group 4: Sciences subjects of the International Baccalaureate Diploma Programme comprise the main scientific emphasis of this internationally recognized high school programme. They consist of seven courses, six of which are offered at both t ...
, subject group for the experimental sciences in the International Baccalaureate program
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Group 4 image format, Group 3 & Group 4 are digital technical standards for image compressing and sending in faxes, and in the Tagged Image File Format (TIFF)
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Group of Four
The G4 nations, comprising Brazil, Germany, India, and Japan, are four countries which support each other's bids for permanent seats on the United Nations Security Council. Unlike the G7, where the common denominator is the economy and long- ...
, the Group of Four (also known as G4) is a coalition of Brazil, Germany, India and Japan, who seek to reform membership in the United Nations Security Council
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Group 4 (company)
Group 4 was a security business operating primarily in the United Kingdom and latterly worldwide. The company was established in 1968, bringing together four British security businesses. It was involved in a series of controversies, including priso ...
, a defunct British security company
*"Group Four", a song from Massive Attack's album,
''Mezzanine''
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