CETSContinuing Education and Training Service (UK)
CETSContractor Engineering & Technical Services
CETSCommonwealth Electronic Tender System (Australia)
CETSCost-Effective Targeting System
CETSCenter for Education Technology Services
CETSConference Europeenne des Télécommunications par Satellites (French: European Conference on Satellite Communications)
CETSCivilian Engineering & Technical Services
CETSCertified Employment Training Specialist
CETSConnector Environmental Test Stand
CETSClinical Especializada para Evaluaciones y Tratamientos Psicologicos
CETSControl Element Test Stand
CETSCompact Engine Test Stand
CETSCommunicative Education Training System
CETSChild Exploitation Tracking System (Canada)
CETSChurch of England Temperance Society
CETSCommission on Engineering and Technical Systems