Continuous Education and Training, an education programme for practising professionals after qualification

Central European Time

Cetus (constellation) (Cet)

Central England temperature a set of monthly records dating back to the seventeenth century

College of Engineering, Trivandrum, in Kerala, India.

WCET-TV, a PBS station serving Cincinnati, Ohio

Comcast Entertainment Television, a Denver, Colorado station

FV180 Combat Engineer Tractor

Common Entrance Test, for prospective students seeking entry into institutes of higher education in India

Certified Engineering Technologist, a Canadian qualification

Common External Tariff

Coventry Evening Telegraph, a newspaper in Coventry, England

Center for Environmental Technology, a radio receiver designer.

College English Test, a national English examination in People's Republic of China.

Community Educational Television, a station ownership arm of the Trinity Broadcasting Network

Critical Experiment Tank, a defunct experimental nuclear reactor at the Idaho National Laboratory