Campbell Interest and Skill Survey - Test (TMMY)
Canadian Information Sharing Service
Canadian Institute of Strategic Studies (EAIO)
Casualty Information Support System - Military (DNAB)
Centaur Integrated Support Structure (MCD)
Center for Information Society Studies - North Carolina State University (RCD)
Center for Information Systems Security - DoD (DOMA)
Centre for International and Strategic Studies - York University - Research center (RCD)
Chromosomal In Situ Suppression - Genetics
Collectif d'Informations Sexuelles et Sexologiques - Collective of Sexual Information and Sexology - Canada
Colonie Interim Storage Site - Department of Energy
Combat Information Systems Squadron (SAUO)
Comite International des Sports des Sourds - International Committee of Sports for the Deaf (EAIO)
Common Information Service System - Database (GDD)
Common Internet Scheme Syntax (DMAA)
Communication and Instrumentation Support Services - NASA (KSC)
Community Information Sharing Service (SAUS)
Community Integrated Service Systems (ADWA)
Computer Industry Software, Services, and Products - Information service or system (IID)
Computer Interface Sub System (ACAE)
Computerized Information Storage System (SAUS)
Conference Internationale de Service Social - International Conference of Social Service
Conference on Information Science and Systems (VLIE)
Conference on Information Sciences and Systems (SAUS)
Conferencia Interamericana de Seguridad Social - Inter-American Conference on Social Security - IACSS (EAIO)
Conseil International des Sciences Sociales - International Social Science Council - ISSC (EAIO)
Consolidated Information Storage System (VLIE)
Contract Information Subsystem (MCD)
Contract Items Specification and Schedule (MCD)
Toronto, ON - FM radio station call letters