Posted in Government & Military, Health & Medicine, Religion, Schools & Education, Science C3 stands for Propane C3 stands for Colorectal Cancer Coalition (Alexandria, Virginia) C3 stands for Command, Control, and Communications (US DoD) C3 stands for College, Career, and Civic Life (education) C3 stands for Composition 3 (explosive) C3 stands for Consultation, Command and Control (NATO) C3 stands for Capability 3 C3 stands for Communicatie Centrum Chemie (Dutch: Chemistry Communication Center; Netherlands) C3 stands for Clarity 3 (Everquest game) C3 stands for Cambridge Community Church C3 stands for Consultation, Command & Control C3 stands for Community Centred Conservation (UK) C3 stands for Schedule III Controlled Substance (USA)